Partitioning and compression

What happens during the partition of an InfoCube? I mean, how will the data be stored after partition? Is it possible to do compression after a cube is partitioned?

Pooja,
Partition as in logical partition of the cube is just a logical way of grouping the data along the line of a particular infoobject to make data access faster (say by the fiscal year). So data is still stored in the cube but you will have different areas within in (logically) where data pertaining to a particular partition is stored. (Analogous to the logical partition on a hard disk)
Compression relates to the aggregates created on the cube which in a way have similar logic to partitions and I think a compression can still be done after partition though would would want to get a 2nd opinion on that.
Doniv

Similar Messages

Dbms_redefinition package and COMPRESS attribute of the target table

Hi experts,
we have an already partitioned and compressed table under Oracle 10g R2 wich we want to move to another tablespace using online redefinition.
The table should keep the Partitions and compressed data after the move.
My question is: How much storage we must have in place for the move of the table ?
Example:
tab (compressed size) : 1000 MB
tab (uncompressed size) : 4000 MB
Seems it depends on how redefinition handles the move of the compressed data.
So if redefinition uses INSERT /* APPEND */ .... is should be roundabout 1000 MB ("compress during write")
Is this assumption correct ?
Can anybody shed some light on redefinition wich kind of compression-conserving stragetgy it uses ?
bye
BB

From the 11.2 admin guide:
Create an empty interim table (in the same schema as the table to be redefined) with all of the desired logical and physical attributes. If columns are to be dropped, do not include them in the definition of the interim table. If a column is to be added, then add the column definition to the interim table. If a column is to be modified, create it in the interim table with the properties that you want.The table being redefined remains available for queries and DML during the entire process.
Execute the FINISH_REDEF_TABLE procedure to complete the redefinition of the table. During this procedure, the original table is locked in exclusive mode for a very short time, independent of the amount of data in the original table. However, FINISH_REDEF_TABLE will wait for all pending DML to commit before completing the redefinition.>
If you did not want to create an interim table, then this approach is not going to work for you. There is no requirement for you to create anything other than the interim table, and any dependent objects can be done automatically, including materialized views. Where did you see that you have to create mview logs?

Gathering statistics on partitioned and non-partitioned tables

Hi all,
My DB is 11.1
I find that gathering statistics on partitioned tables are really slow.
TABLE_NAME                       NUM_ROWS     BLOCKS SAMPLE_SIZE LAST_ANALYZED PARTITIONED COMPRESSION
O_FCT_BP1                        112123170     843140    11212317 8/30/2011 3:5            NO                    DISABLED
LEON_123456                      112096060     521984    11209606 8/30/2011 4:2           NO                   ENABLED
O_FCT                           115170000     486556      115170 8/29/2011 6:3            YES
SQL> SELECT COUNT(*) FROM user_tab_subpartitions
2 WHERE table_name =O_FCT'
3 ;
COUNT(*)
       112I used the following script:
BEGIN
DBMS_STATS.GATHER_TABLE_STATS(ownname          => user,
                                tabname          => O_FCT',
                                method_opt       => 'for all columns size auto',
                                degree           => 4,
                                estimate_percent =>10,
                                granularity      => 'ALL',
                                cascade          => false);
END;
/It costs 2 mins for the first two tables to gather the statistics respectively, but more than 10 mins for the partitioned table.
The time of collecting statistics accounts for a large part of total batch time.
And most jobs of the batch are full load in which case all partitions and subpartitions will be affected and we can't just gather specified partitions.
Does anyone have some experiences on this subject? Thank you very much.
Best regards,
Leon
Edited by: user12064076 on Aug 30, 2011 1:45 AM

Hi Leon
Why don't you gather stats at partition level? If your partitions data is not going to change after a day (date range partition for ex), you can simply do at partition level
GRANULARITY=>'PARTITION' for partition level and
GRANULARITY=>'SUBPARTITION' for subpartition level
You are gathering global stats every time which you may not require.
Edited by: user12035575 on 30-Aug-2011 01:50

Is it possible to create table with partition in compress mode

Hi All,
I want to create a table in compress option, with partitions. When i create with partitions the compression isnt enabled, but with noramal table creation the compression option is enables.
My question is:
cant we create a table with partition/subpartition in compress mode..? Please help.
Below is the code that i have used for table creation.
CREATE TABLE temp
TRADE_ID                    NUMBER,
SRC_SYSTEM_ID               VARCHAR2(60 BYTE),
SRC_TRADE_ID                VARCHAR2(60 BYTE),
SRC_TRADE_VERSION           VARCHAR2(60 BYTE),
ORIG_SRC_SYSTEM_ID          VARCHAR2(30 BYTE),
TRADE_STATUS                VARCHAR2(60 BYTE),
TRADE_TYPE                  VARCHAR2(60 BYTE),
SECURITY_TYPE               VARCHAR2(60 BYTE),
VOLUME                      NUMBER,
ENTRY_DATE                  DATE,
    REASON                      VARCHAR2(255 BYTE),
TABLESPACE data
PCTUSED    0
PCTFREE    10
INITRANS   1
MAXTRANS   255
NOLOGGING
COMPRESS
NOCACHE
PARALLEL (DEGREE 6 INSTANCES 1)
MONITORING
PARTITION BY RANGE (TRADE_DATE)
SUBPARTITION BY LIST (SRC_SYSTEM_ID)
SUBPARTITION TEMPLATE
(SUBPARTITION SALES VALUES ('sales'),
   SUBPARTITION MAG VALUES ('MAG'),
   SUBPARTITION SPI VALUES ('SPI', 'SPIM', 'SPIIA'),
   SUBPARTITION FIS VALUES ('FIS'),
   SUBPARTITION GD VALUES ('GS'),
   SUBPARTITION ST VALUES ('ST'),
   SUBPARTITION KOR VALUES ('KOR'),
   SUBPARTITION BLR VALUES ('BLR'),
   SUBPARTITION SUT VALUES ('SUT'),
   SUBPARTITION RM VALUES ('RM'),
   SUBPARTITION DEFAULT VALUES (default)
PARTITION RMS_TRADE_DLY_MAX VALUES LESS THAN (MAXVALUE)
    LOGGING
        TABLESPACE data
     ( SUBPARTITION TS_MAX_SALES VALUES ('SALES')      TABLESPACE data,
    SUBPARTITION TS_MAX_MAG VALUES ('MAG')      TABLESPACE data,
    SUBPARTITION TS_MAX_SPI VALUES ('SPI', 'SPIM', 'SPIIA')      TABLESPACE data,
    SUBPARTITION TS_MAX_FIS VALUES ('FIS')      TABLESPACE data,
    SUBPARTITION TS_MAX_GS VALUES ('GS')      TABLESPACE data,
    SUBPARTITION TS_MAX_ST VALUES ('ST')      TABLESPACE data,
    SUBPARTITION TS_MAX_KOR VALUES ('KOR')      TABLESPACE data,
    SUBPARTITION TS_MAX_BLR VALUES ('BLR')      TABLESPACE data,
    SUBPARTITION TS_MAX_SUT VALUES ('SUT')      TABLESPACE data,
    SUBPARTITION TS_MAX_RM VALUES ('RM')      TABLESPACE data,
    SUBPARTITION TS_MAX_DEFAULT VALUES (default)      TABLESPACE data)); Edited by: user11942774 on 8 Dec, 2011 5:17 AM

user11942774 wrote:
I want to create a table in compress option, with partitions. When i create with partitions the compression isnt enabled, but with noramal table creation the compression option is enables. First of all your CREATE TABLE statement is full of syntax errors. Next time test it before posting - we don't want to spend time on fixing things not related to your question.
Now, I bet you check COMPRESSION value of partitioned table same way you do it for a non-partitioned table - in USER_TABLES - and therefore get wrong results. Since compreesion can be enabled on individual partition level you need to check COMPRESSION in USER_TAB_PARTITIONS:
SQL> CREATE TABLE temp
2 (
3    TRADE_ID                    NUMBER,
4    SRC_SYSTEM_ID               VARCHAR2(60 BYTE),
5    SRC_TRADE_ID                VARCHAR2(60 BYTE),
6    SRC_TRADE_VERSION           VARCHAR2(60 BYTE),
7    ORIG_SRC_SYSTEM_ID          VARCHAR2(30 BYTE),
8    TRADE_STATUS                VARCHAR2(60 BYTE),
9    TRADE_TYPE                  VARCHAR2(60 BYTE),
10    SECURITY_TYPE               VARCHAR2(60 BYTE),
11    VOLUME                      NUMBER,
12    ENTRY_DATE                  DATE,
13      REASON                      VARCHAR2(255 BYTE),
14    TRADE_DATE                  DATE
15 )
16 TABLESPACE users
17 PCTUSED    0
18 PCTFREE    10
19 INITRANS   1
20 MAXTRANS   255
21 NOLOGGING
22 COMPRESS
23 NOCACHE
24 PARALLEL (DEGREE 6 INSTANCES 1)
25 MONITORING
26 PARTITION BY RANGE (TRADE_DATE)
27 SUBPARTITION BY LIST (SRC_SYSTEM_ID)
28 SUBPARTITION TEMPLATE
29    (SUBPARTITION SALES VALUES ('sales'),
30     SUBPARTITION MAG VALUES ('MAG'),
31     SUBPARTITION SPI VALUES ('SPI', 'SPIM', 'SPIIA'),
32     SUBPARTITION FIS VALUES ('FIS'),
33     SUBPARTITION GD VALUES ('GS'),
34     SUBPARTITION ST VALUES ('ST'),
35     SUBPARTITION KOR VALUES ('KOR'),
36     SUBPARTITION BLR VALUES ('BLR'),
37     SUBPARTITION SUT VALUES ('SUT'),
38     SUBPARTITION RM VALUES ('RM'),
39     SUBPARTITION DEFAULT_SUB VALUES (default)
40    )
41 (
42   PARTITION RMS_TRADE_DLY_MAX VALUES LESS THAN (MAXVALUE)
43      LOGGING
44          TABLESPACE users
45       ( SUBPARTITION TS_MAX_SALES VALUES ('SALES')      TABLESPACE users,
46      SUBPARTITION TS_MAX_MAG VALUES ('MAG')      TABLESPACE users,
47      SUBPARTITION TS_MAX_SPI VALUES ('SPI', 'SPIM', 'SPIIA')      TABLESPACE users,
48      SUBPARTITION TS_MAX_FIS VALUES ('FIS')      TABLESPACE users,
49      SUBPARTITION TS_MAX_GS VALUES ('GS')      TABLESPACE users,
50      SUBPARTITION TS_MAX_ST VALUES ('ST')      TABLESPACE users,
51      SUBPARTITION TS_MAX_KOR VALUES ('KOR')      TABLESPACE users,
52      SUBPARTITION TS_MAX_BLR VALUES ('BLR')      TABLESPACE users,
53      SUBPARTITION TS_MAX_SUT VALUES ('SUT')      TABLESPACE users,
54      SUBPARTITION TS_MAX_RM VALUES ('RM')      TABLESPACE users,
55      SUBPARTITION TS_MAX_DEFAULT VALUES (default)      TABLESPACE users));
Table created.
SQL>
SQL>
SQL> SELECT PARTITION_NAME,
2          COMPRESSION
3    FROM USER_TAB_PARTITIONS
4    WHERE TABLE_NAME = 'TEMP'
5 /
PARTITION_NAME                 COMPRESS
RMS_TRADE_DLY_MAX              ENABLED
SQL> SELECT COMPRESSION
2    FROM USER_TABLES
3    WHERE TABLE_NAME = 'TEMP'
4 /
COMPRESS
SQL> SY.

Difference between " COMPRESS FOR ALL OPERATIONS" and "COMPRESS FOR OLTP"?

I was looking through Oracle's OLTP Table Compression (11g onwards) documentation as well as online resources to find the syntax and came across two different versions:
COMPRESS FOR ALL OPERATIONS
and
COMPRESS FOR OLTP
The documentation I looked through didn't mention any alternative syntax, so i was wondering if anyone here might know the difference.
Thank you!

Table Compression Enhancements in Oracle Database 11G Rel1 as as follows:
The compression clause can be specified at the tablespace, table or partition level with the following options:
•NOCOMPRESS - The table or partition is not compressed. This is the default action when no compression clause is specified.
•COMPRESS - This option is considered suitable for data warehouse systems. Compression is enabled on the table or partition during direct-path inserts only.
•COMPRESS FOR DIRECT_LOAD OPERATIONS - This option has the same affect as the simple COMPRESS keyword.
•COMPRESS FOR ALL OPERATIONS - This option is considered suitable for OLTP systems. As the name implies, this option enables compression for all operations, including regular DML statements. This option requires the COMPATIBLE initialization parameter to be set to 11.1.0 or higher.

Data Recovery from Partitioned and formatted Bit Locker Encrypted Drive

Recently because of some issues in windows 7 installation from windows 8 installed OS. it was giving as the disc is dynamic windows can not be installed on it. so at last after struggling hard no other solution i partitioned and formatted my whole
drive so all data gone included the drive which was encrypted by bit lockers.
For recovery i used many software such as ontrack easy recover, get data back, recovery my files professional edition but still i couldnt able to recover my data from that drive. then i found some suggestion Using CMD to decrypt my data first
http://technet.microsoft.com/en-us/library/ee523219(WS.10).aspx
where it shows it successfully decrypt my data at that moment my drives were in RAW format excluding on which windows is installed and then in CMD i check Chdsk which also shows no problem found. but now problem is still i coudnt able to recover
my data then i format the drive D and again tried to recover data using above software after decryption still no result.
Now i need assistance how i can recover my encrypted drive as it was partitioned and also formatted but decrypted also as i have its recovery key too. thanks

Hi ,
I am afraid that we cannot get the data back if the drive has been formatted even if use the
BitLocker Repair Tool.
You’d better contact your local data recovery center to try to get data back.
Tracy Cai
TechNet Community Support

Few questions about partitioning and formatting in Windows 8

Hello,
I'm very shortly after a Windows 8 reinstall and I want to make use of this moment to finally understand partitioning and formatting in Windows 8.
Before using Windows 8, I was an XP user for 5 years and I actually never bothered myself with formatting my main system partition, that's probably why my computer ended up working like a slime for the last years. Anyway, by now I have been using Windows 8 for a year.
Three weeks ago I faced a system-related problem with my laptop (IdeaPad Y580) which prevented it from peacefully shutting down. A good friend of mine (XP user for his entire life, and now Windows 7 newbie user) told me, that I should keep all my non-system stuff on separate partition and that I should do the main system partition format from time to time to keep my PC out of trouble. It is sure that he took his knowledge from using XP, and here's my first question - does this method apply to Windows 8?
I mean as far as I know, back then, in XP, partitioning was possible only during Windows installation, and now, in Windows 8 we have a Disk Management for this, which do not require running Windows installation to create new partitions.
I'm mentioning this due to the fact that originally (I mean by factory settings) my drive has only one visible partition - C: (1TB), so I would need to use the Disk Management to take some space from C: partition and allocate it to the new D: partition.
In case I do this whole partitioning operation and create a D: partition, is it sure that formatting my system-only C: partition won't have effects on my D: partition, and all the programms and data I have here will stay on their places and work after format? (I'm worried about this because I've seen in some partitioning guide a warning not to format the main partition after the partitioning operation, because it would erase totally all data - I'm not sure if I misunderstood something or is it a mistake? EDIT: here's the link for this guide, just jump to the "Final Thoughts" section to see what I'm taking about: http://www.technorms.com/8438/windows-8-create-hard-drive-partition ).
If this whole method of keeping your system running fine doesn't apply to Windows 8, I guess I'm okay with having only one C: partition.
By the way, it doesn't matter for me if I create new partition in terms of conflicts with preinstalled Lenovo OneKey Recovery, since I had to reinstall my Windows 8 recently from non-Lenovo CD, and either way my laptop is now totally clean, without Lenovo stuff (I found Lenovo Recovery CD for Y580 on the internet, but it had non-single-language Windows 8 in it, and I needed a single-laguage one in order to have my Product Key recognised, so I just used a pure Windows 8 SL installer)

I just found out that I can't even transfer my Users folder or Program Data to other drive than the one with the system, because it would prevent me from updating my system or even from actually booting to my system. So apparently my whole topic is for nothing... I guess I should live with only one drive, and whenever my system totally crashes again I should do the backups to my external HDD. It's sad though that Windows 8 is a total opposite to user-friendly OS, to say the least.

How I tried fix my partitions and restore a Dell Diagnostic Partition.

UPDATED: 2 September 2012
UPDATE: Now that I reflect back on the incidence, I realize that the Dell Utility partition had lost its ability to boot long before I had messed up my partition table. But I realized it only when I was testing all my partitions after fixing the partition table. But as I have already written this long post, lets just keep it here for future reference of anyone else stumbling across a similar problem. Read on to know about my experience.
RECOMMENDATION: I do not recommend trying out all the steps below as they did not completely solve the problem for me. If you need the Diagnostic Utility, download the update package from Dell's support website for your model. This package can be used to create a boot-able USB drive and/or CD/DVD. These work fine and are pretty fast also.
Something strange happened to me and I am now reporting my experience in trying to solve it (somewhat unsuccessfully!!)
First of all, my setup is: Dell Studio 1555 laptop. I dual boot Windows 7 and Archlinux. So here's how it went:
After using the partitioning tool Gparted under Archlinux to resize a partition, I found a problem had occurred. The Partition was NTFS formatted and all of my data files were stored on it. The partition worked fine under Archlinux as I was able to access my files fine under it. But in Windows, although the partition was listed under Windows explorer, it wanted to format it!! When I tried to access the partition it gave an error that it was not formatted (
The drive is not formatted, do you want to format it now?
). Of course, that was not right and Gparted had messed something up. I fixed that using Testdisk under Archlinux (See the Details). So now the partition problem under windows was fixed. But now another problem cropped up under Archlinux. When I booted into Archlinux and started Gparted to confirm everything was fine I saw something strange in Gparted. The whole space on my hard disk was marked as "unallocated" under Gparted. Windows and Archlinux could "see" the partitions. By this I mean that I was able to boot fine under both my OSes. And I could access all my files under all my partitions. But somehow Gparted was not able to "see" them. Gparted was reporting my whole disk to be marked as unallocated. After that I researched a lot and lots of stuff happened experimenting to fix the problem. I used a lot of utilities. But actually only one fixed the problem-fixparts from the gptfdisk package. But it seemed like a lot of work trying to get the problem fixed (See the Details).
Now we get to the point in discussion. I was able to get my partitions back under Gparted. But I lost the Dell Diagnostics Utility partition's ability to boot up. [Actually, now that I reflect back on the incidence, I realize that the Dell Utility partition had lost its ability to boot long before I had messed up my partition table. But I realized it only when I was testing all my partition after fixing the partition table. But more on this later.] It gave an error that the partition was not found.
So, in short: After all this restoring partitions' visibility under Gparted, I realized that the Dell Utility partition on my Studio 1555 was not booting up. To explain this, it means that when I press F-12 when starting the laptop and select Diagnostics from the menu to run the Diagnostic Utility and after running the Pre-boot System Assesment tests when I consented to boot the Diagnostic Utility partition, it gave me the error that the partition was not found. When I tried to run the "Dell 32 Bit Diagnostics (Graphical User Interface version)" update package under Windows, it resulted in a similar error: Partition not found.
For some background on what makes the Dell Utility partition so special, please read this thread and the third post on this thread.
WARNING: You and only you are responsible for your data. Please make a backup before performing any of the partitioning steps below.
NOTE: Please read the entire post before actually performing the steps.
So, to try and fix this I did the following:
Boot into Windows 7.
Open Disk Management under the Computer Management console (To open the Computer Management console, right click on Computer in the Start menu and select Manage).
Reformat the Dell Diagnostic Utility partition as FAT(not FAT32). This is the first partition on the drive (marked as Healthy (OEM Partition) under the Status column). [This step may not be required, however I had done it. See Notes below.]
UPDATE: After reading around a bit I found that these steps to format the partition might not actually be necessary. Simply changing the type of the partition (as detailed below) might also work. However as I had done that, lets just keep these steps over here.
Reboot into a Linux distribution Live CD (I had Ubuntu 10.10). Or, If you dual boot with a Linux distribution that does not complain about the now inconsistent fstab entry, you can also boot into that distribution directly. I had to boot into Live CD to fix my /etc/fstab.
UPDATE: After considering all the aspects from start to end I have come to a conclusion regarding the efficacy of this method on dual boot machines with Windows and Linux installed. I doubt anyone with a dual boot Windows/Linux setup would be able to boot into the Dell Diagnostic Utility even with the Utility Partition restored. This is detailed below.
(As noted above my Archlinux install did not boot up after I had reformatted my Dell Diagnostic Utility partition. This is because I was mounting the Dell Utility partition at boot using fstab inside Archlinux. And I was using the UUID to mount the partition. After reformatting the partition its UUID changed. So, it wouldn't mount. And because of how my fstab was setup Archlinux won't boot. So, I had to boot into a live environment to fix this. This step applied only to me. YRMV.) Fix the fstab entry.
(This step also applied to me.) Boot into the repaired Linux Distribution.
And open a Terminal.
In the open terminal run fdisk on your drive, e.g.,
fdisk /dev/sda
This is how it looks:
[abhishek@Nitaichand ~]$ sudo fdisk /dev/sda
Password:
Command (m for help):
To change the partition type give the appropriate command, i.e.,
Command (m for help): t
Specify the partition, i.e.,
Partition number (1-10): 1
Type L to see available codes:
Hex code (type L to list codes):L
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx
5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data
6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility
8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt
9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access
a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 5c Priam Edisk a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary
16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT
1e Hidden W95 FAT1 80 Old Minix
Type the desired code, i.e.,
Hex code (type L to list codes): de
Write the partition table with:
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[abhishek@Nitaichand ~]$
Download the required Diagnostics Update Package from the Drivers Download page for your model. Got mine from here.
Run the downloaded package under the OS you it downloaded for. That is, run the .exe on Windows. Or, if you downloaded the .bin file for Linux then first make it executable:
chmod u+x CL1367A0.bin
And now run it under a Linux distribution with an older version of python installed (I think <2.7). I say this because the .bin package didn't run on an updated Archlinux for me, probably because it has the latest python. I ran it from the Ubuntu 10.10 Live CD and it ran fine under that.
On Windows, If you are not automatically prompted with an option to update your Utility Partition then you need to browse to the location where the package was extracted (for me it was C:\dell\drivers\R239866).
Now you need to manually run the extracted file (for me it was DDDP.exe). Most probably you'll need to right-click it and run it as an Administrator. And if all went well, it will extract/update the diagnostic utilities to/on the Dell Utility Partition.
I believe the above steps should be sufficient for someone who's lucky and who's update package is smart enough. However these steps were not sufficient for me. My "Partition not found" error was gone because I had changed the partition type. And so the update package was able to recognize the partition and extract the necessary files to it. But I was still not able to boot the utility partition. After the Pre-boot System Assessment although I no longer got the "Partition not found" error, but I was just dropped onto the GRUB boot menu prompt.
[UPDATE: As stated above, I realize that the recovery partition had lost its ability to boot long before I had messed up my partition table. But I realized it only when I was testing all my partition after fixing the partition table. Please refer to this forum thread for further Details. I do not think that it is possible longer to boot from the Dell Utility Parttion on my setup which has GRUB installed to the MBR. But the rest of the post documents my attempts to slove the problem without the knowledge from the forum post.]
Anyways, it was a pain to again and again set up/update the partition and test it after waiting half an hour or so for the Pre-boot System Assessment to complete. But I was determined to solve the problem at-least partially, until next time. So I created a GRUB entry to boot the Utility partition. Assuming the partition is the first partition on the drive (which is the case here), the grub entry is simply:
title Dell Utility
rootnoverify (hd0,0)
chainloader +1
I tried downloading an older update package. I updated my Partition with it. And tested. Still, I was unsuccessful. I researched a little bit and found this link. Out of frustration,I decided to use brute force this time . So, the below are the steps which let me have at-least a glimpse of The Dell Diagnostic Utility booting up from the partition:
Backup your partition table using the sfdisk command (not fdisk).
Follow the instructions in the link I gave above (i.e., http://community.spiceworks.com/how_to/show/1123) and build your Utility Partition from scratch.
Now after that when you try to boot into the OS you'll be presented with an blue bar on top. This is because the mkup batch file from the Dell Diagnostic/Drivers CD/DVD wiped your partition table and rewrote it with only one partition on it- the Dell utility partition.
Boot into a Live environment and restore your partition table from the backup created earlier using sfdisk.
Now boot with a Windows disc to repair your Windows boot problem. This applied to me but may not apply to you.
Again boot into a live environment and restore GRUB to MBR.
After a reboot press F-12 to get to the BIOS boot menu and select Diagnostics.
Let the Pre-boot Assessment run and after its complete it will ask you to press any key to boot the Dell Utility partition. Do that.
You'll notice your still dropped into GRUB instead of getting the Diagnostics GUI.
Now when on GRUB prompt don't boot any other OS.
Press any key (other than <Enter>, that is ) to stop the timer if you have one set.
Now look carefully at the boot menu.
Remember I told you that I had created a GRUB menu entry to boot the Dell Utility partition. Select that. And if you are lucky you might just be able boot the partition. This worked for me (finally!).
After this initial run I was unable to run the Diagnostics GUI from the GRUB menu entry again. I haven't tried to re-run the Pre-boot Assessment and wait to see, if I'm able to boot it from there. But now, I'm satisfied that at-least the file there are in a running condition.
Also, the update package can be used to create boot-able USB drives or boot-able CD/DVDs which can run the Diagnostics just fine. They are almost as fast as the partition (especially the USB which seems even faster). They are recommend, instead of going into this trouble to recreate the partition. That is unless you are a purist/perfectionist .
Notes:
At first, I panicked and tried a lot of steps that are not exactly documented above for the sake of convenience to others who might refer.
I have thus rewritten the post in a manner to make it very general in nature as it did not become very fruitful for myself. If you attempt to use this guide, use common sense where necessary .
Of course, if you are trying to build a Utility partition on a bare hard drive or you're feeling adventurous, you can always follow this link .
Last edited by bhadotia (2012-10-08 19:03:18)

bhadotia wrote:Anyway's the file downloaded from dell to update the partition for Studio 1555 is corrupted (checksums don't match). My partition still doesn't boot. I'm working to fix this and will update my post when I'm done.
The file seems to create the CD/DVD/Image and USB just fine. So I used this only to create a CD image which I then wrote on a blank CD which seems to work fine. Also, I played around a bit and had some partial success in booting the partition. I've updated my original opening post with the new findings.
Whew!! what a waste of time! Never want to do all of this again .
Last edited by bhadotia (2012-03-03 00:05:22)

Thunderbolt partitioned and formatted hard drive not recognized on USB2/3

I have a MBA (mid 2012) and recently purchased a Seagate Desktop Thunderbolt Adapter (STAE129), a Seagate Backup Plus 4TB USB 3.0 external drive (STCA4000100), and Apple Thunderbolt cable. The 4TB hard drive can be separated from the USB 3.0 adapter and the drive placed on the Thunderbolt adapter. I created two partitions (3TB and 1 TB) on the 4TB drive while it was mounted on the Thunderbolt adapter and formatted them Mac OS Extended (Journaled) using partition map scheme GPT. Everything works as expected, the drive hits r/w speeds in the 180 MB/s range (using Blackmagic Disk Speed Test), and no issues at all transferring data to the 3TB partition and using the 1TB partition for TimeMachine.
However, if I disconnect the hard drive from the Thunderbolt adapter and place it on the USB 3.0 adapter and connect it to my MBA, Mountain Lion says "The disk you inserted was not readable by this computer and gives me the options to Initialize, Ignore, or Eject. Going into Disk Utility app, the drive shows up without the partitions I created when the same drive was mounted to the Thunderbolt adapter (just shows disk1s1). In fact, the drive label (Disk Description) is different too and the Partition Map Scheme now shows MBR!
To try work-arounds, I went ahead and repeated the partitioning and formatting steps with the drive attached via USB 3.0 and all works fine until I put the drive back on the Thunderbolt adapter where once again OSX reports that the disk is not readable. I've even tried a single partition with no luck. In short, the drive partitioned and formatted on Thunderbolt is unrecognized under USB and vice versa.
Shouldn't the disk preparation and data be consistent across these different interfaces? I would think so. My biggest concern is that if I had a failure in the Thunderbolt setup (assuming the drive itself does not fail), then I can't access my data. This is not a very comfortable situation.
I'm assuming I've overlooked a very basic detail. Appreciate any steer to solve this problem.
Thanks,
Rob

Thanks for that, I recently ran into the same problem. I even chatted with Seagate tech support and they didn't know the answer.
My situation is a bit different from you. I bought the 3 TB Thunderbolt version of the drive directly and then purchased a USB 3 adaptor seperately. You see, I still own a 3 year old Macbook Pro that doesn't come with a Thunderbolt port. I was looking to upgade to a MacBook Air later. I thought that I might as well buy the TB version now.
In anycase, my old MacBook Pro won't see the drive when I use the USB3 adaptor. I get the same exact error message as you did. I can't really test it on Thunderbolt since I don't have one. I'm going to go install the Thunderbolt drivers now and hopefully, it will recognize the drive afterwards. I'll let you know what happens.
BTW, I was thinking of reformatting the drive with NTFS so that I can use the drive on PCs. My mac has the NTFS drivers loaded so it's no problem. I hope this won't screw up the Thunderbolt connection later when I do get the Macbook Air?

Hello All... Back after a brief absence, things look a little bit different. I'm trying to take a 16 minute mini dv video and compress it for use on the web. I'm interested in any suggestions you may have on settings for the video and audio tracks. I'v

Hello All...
Back after a brief absence, things look a little bit different.
I'm trying to take a 16 minute mini dv video and compress it for use on the web. I'm interested in any suggestions you may have on settings for the video and audio tracks. I've tried using Sorenson 3 (15 frames, key frames set to automatic, 320 x 240) for video and IMA 4:1 (mono) for audio. The resulting video looked great but the file size came in at about 255 Mb.
Thanks!
PowerMac G5 1.8 Dual Mac OS X (10.4.3)
Message was edited by: Dan Foley

Thank you for the replies. Everyone was correct about the jack, interface, and phasing problems. I have been unplugging my motu audio interface and then using headphones at work. I have not changed any detailed audio output settings in logic. When I read that the jack might be a problem I tried switching headphones. This actually helped. I am using dre-beats headphones and they seem to be having issues with the mac/jack-(the phasing/panning problems. I can use these headphones with other devices but not the mac. I have to use ipod ear buds and the phasing seems fixed. Hopefully this information is helpful to someone else.
If anyone knows how to correct this issue please let me know its difficult to know what my final mixes are going to sound like and I have had to keep bouncing everything into i-tunes- sync to ipod and then listen in my car radio.

New to Mac... I have partitioned my hard drive Dual Boot M.Lion/S. Leopard with 2 OS partitions and a Media Partition. How do I direct my file storage to the Media Partition? Can I put a "Media" folder on both OS Desktops that will allow me to drag n drop

New to Mac... I have Partitioned my MacBookPro with Dual Boot Partitions running M.Lion and S. Leopard and a seperate media partition.
How do I assign my storage to the MEDIA Partition once I am booted in either OS?
Can I place a folder on my desktop so I can read/write ALL my media to?

Why not? Make a folder in your media partition and put an alias folder (shortcut) on the desktop of each partition/ OS. You can right click on the folder in the media partition and click on "make alias".
If you want to direct your iTunes media to point to the media partition, google "move iTunes library to external disk" and follow the steps; the instructions should be the same for a seperate partition as it is for an external drive.

Transaction or report for showing partitions and total amount in BW 3.5?

Hello,
I want to fulfill a unicode conversion of a BW 3.5 system and found out, that this system has some tables with plenty of table partitions (700-1200). To calculate the table splitting it would be very helpful if there is a transaction or report where I can enter the name of a table and the result will be the amount of partitions and the calculated sum of all partitions including the header table.
Does this exist in a SAP BW 3.5 system?!
If not, are there useful alternatives?
Thanks in advance

Hey you two,
Yes, I know already DB02 and I used it to show a list with object type "TABLE PART*". But then, I get a list of ca. 4900 table partitions. I just want to have a list looking like:
/BIC/B000637000 155 Partitions 106,0 Gb Whole Size
I don't want to know the partitions themselves, but the amount and the header table - and of course the whole size. Is that also possible with DB02?

Need help to partition and format new hard drive for T400

The HDD failed in my T400. I bought a new 1TB HDD and fitted it. The diagnostic software in the BIOS did a read and controller test (Passed). When I put the Windows XP disk in the CD reader, the setup started - then stalled at the "Windows setup" page. I thought the hard drive had a write problem but apparently it must be partitioned and formatted first, before Widows setup can commence. The thing is that I can't get to the option where Windows formats the drive. In old computers, there was always a partitioning option in the BIOS setup but in my T400, there doesn't appear to be any such option. The computer has 4GB RAM, the actual model is 2767-RV8.
Does anyone have any suggestions how to get this up and running?
One other question is - (assuming I can get the thing working) - Is there somewhere I can load the operating system on part of the hard drive where it can act as a fall back in case the operating system gets corrupted? - i.e. something that can't get attacked by malicious software?
Thanks in advance for any assistance.
Ian

Hi irivlin,
If you are trying to clean install XP, then you have to do following setting in BIOS first:
Press F1 to BIOS, Config -> Serial ATA (SATA) -> change to "Compatibility"
You can change XP partition only if you are doing clean installation, otherwise you have to use 3rd party to do it.
For backup part, there are lots of choices in the market. You might consider using XP own backup function. Lenovo got a program called Rescue and Recovery can also do backup as well.
How to use the Backup utility to back up files and folders in Windows XP Home Edition
http://support.microsoft.com/kb/320820/en-us
Rescue and Recovery® 4.23 by Lenovo
http://support.lenovo.com/en_US/product-and-parts/detail.page?&LegacyDocID=MIGR-76225
Fred
T61 + X201i

RE: Cleaning and Compression Environment Repository

Mark,
I'm not sure what I did wrong the first time. I thought I
covered all the bases, but just to be certain, I did the
whole sequence again and now it works.
Before, I did have problems restarting the environment,
because the repository was locked. I had to kill a
hanging process to solve the problem. Most likely
it was this process that was interfering with my original
attempts.
With this script, you offered some very usefull infor-
mation. Where did you get it? Like I said in my
first posting, I couldn't find any documentation.
The "help" function of "envedit" doesn't show any of
the commands you used. No way, you stumbled
on this by accident.
Thanks,
Pascal Rottier
STP - MSS Support & Coordination Group
Philip Morris Europe
e-mail: [email protected]
Phone: +49 (0)89-72472530
+++++++++++++++++++++++++++++++++++
Origin IT-services
Desktop Business Solutions Rotterdam
e-mail: [email protected]
Phone: +31 (0)10-2428100
+++++++++++++++++++++++++++++++++++
/* Ever stop to think, and forget to start again? */
-----Original Message-----
From: [email protected]
[SMTP:[email protected]]
Sent: Wednesday, June 30, 1999 1:04 PM
To: [email protected]
Cc: [email protected]
Subject: Re: Cleaning and Compression Environment Repository
The script mentioned is the exact sequence of commands that should be
used.
Did you shutdown the environment first? You cannot clean an environment
repository while the environment is online. I know that these commands
work for both NT and Unix environment managers.
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

Mark,
I'm not sure what I did wrong the first time. I thought I
covered all the bases, but just to be certain, I did the
whole sequence again and now it works.
Before, I did have problems restarting the environment,
because the repository was locked. I had to kill a
hanging process to solve the problem. Most likely
it was this process that was interfering with my original
attempts.
With this script, you offered some very usefull infor-
mation. Where did you get it? Like I said in my
first posting, I couldn't find any documentation.
The "help" function of "envedit" doesn't show any of
the commands you used. No way, you stumbled
on this by accident.
Thanks,
Pascal Rottier
STP - MSS Support & Coordination Group
Philip Morris Europe
e-mail: [email protected]
Phone: +49 (0)89-72472530
+++++++++++++++++++++++++++++++++++
Origin IT-services
Desktop Business Solutions Rotterdam
e-mail: [email protected]
Phone: +31 (0)10-2428100
+++++++++++++++++++++++++++++++++++
/* Ever stop to think, and forget to start again? */
-----Original Message-----
From: [email protected]
[SMTP:[email protected]]
Sent: Wednesday, June 30, 1999 1:04 PM
To: [email protected]
Cc: [email protected]
Subject: Re: Cleaning and Compression Environment Repository
The script mentioned is the exact sequence of commands that should be
used.
Did you shutdown the environment first? You cannot clean an environment
repository while the environment is online. I know that these commands
work for both NT and Unix environment managers.
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

Malignant secondary boot device. When I plug in an external hard drive which has time machine in one partition and a secondary boot device in another, the secondary boot takes over and wipes existing files. How do I turn it off but keep the time machine

Please help new (senior) convert to Mac Pro (OS X). Am following the 'switching to a Mac' portable genius 2nd ed, and as it advised, I bought an external hard drive (a Mac My Word) and partitioned it with one partition for a secondary boot device and another for time machine. Book implied I needed both. Seemed to download OK but now when i plug in the external hard-drive it wants to reboot me fresh all over again. How do I keep the time machine partition going but have the secondary boot device only in case of emergencies? Do I 'eject' that partition- and if so how do I do it from outside the hard drive (I am not game to reattach it currently)

Launch the System Preferences application (under the Apple menu) and select the Startup Disk preference pane. Set your internal drive as the startup disk. Close the window.

Partitioning and compression

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