Use more disk space from 8K block_size to 16K block_size

Can some one answer my question, I have instance A (8K block_size), create a new Instance B (16K block_size), export (FULL) from Instance A, Import (FULL) onto Instance B.
I was wondering if changing from 8K instance to 16K instance will take more space.
I compared the tablespaces from both Instances (A & B), they seem to be the same.
Can any one help me in thise area, because I need to plan for future 16K instances and need to plan for more space if required.
Thanks

Hi Patrick,
I was wondering if changing from 8K instance to 16K instance will take more space.No, not if you "half" your PCTFREE to have the same reserved space as 8k.
For example, pctfree=10 is 800 bytes on 8k blocks, but pctfree=10 is 1,600 bytes on a 16k block . . .
Also, MAKE SURE you don't hit this UGLY BUG in 16k blocksizes:
http://www.oraclealchemist.com/oracle/hey-guys-does-size-matter/
"The final result: When the update was run against the 16k blocksize DB, it took 45 minutes. Against the 4k blocksize DB on the same box with the same parameters and the same FS mounts, it took 2 minutes 20 seconds."
Also, see these important notes on using non-standard blocksizes:
http://www.dba-oracle.com/t_multiple_blocksizes_summary.htm
Hope this helps . . .
Donald K. Burleson
Oracle Press author
Author of "Oracle Tuning: The Definitive Reference"
http://www.rampant-books.com/book_2005_1_awr_proactive_tuning.htm

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If I bring in photos from Iphoto, am I using more disk space on my hard drive. I dont want to duplicate my entire file. I have 26000 photos in I photo.

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Does increasing Exchange Storgage Quota use more disk space immediately?

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This topic first appeared in the Spiceworks Community

More disk space from 128 GB Yoga 13 (I just found 3.8 GB for my use!)

If you have seen my previous post about only getting 101 GB instead of 128 GB and how I tried to combine my C: and D: and now have a total of just 97GB, I have an update and more questions:
http://forums.lenovo.com/t5/IdeaPad-IdeaTab-Slate-Tablets/Yoga-13-Where-is-my-128GB-drive-I-just-see...
So, I saw a post about using diskpart to fix 2012 vintage Yoga 13 drive allocation issues and played around a bit last night.
After I messed up my computer by backing up all the crud in the d: drive to my main computer and deleting the partition and attempting to merge it to my c: partion, my machine looked like this:
1000 MB Recovery Partition
260 MB EFI System Partition
1000 MB OEM Partition
96.91 GB NTFS (Boot, Page File, Crash Dump, Primary Partition
8 GB Primary Partition
12 GB Recovery Partition
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get command prompt (search for prompt) and enter the first three commands below
diskpart
sel disk 0
list part
sel part 7 (Note: most folks would use 8 to get the last partition listed)
assign
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It would be part 8 if you did not already delete the D: drive.
I did the same thing for part 1 and now have a drive E: with 529 MB free.
remove to get rid of letter (to hide it again)
I should mention that there seem to be some hidden files in the last partition as all the individual pieces did not add up to the total used.
I tried adding a drive letter to the 2nd last partion (which I think is the Intel Rapid Start partition) but it would not allow that. Same goes for the 3rd (OEM) partition.
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I have performed the OneKey recovery using the little button next to the power switch trying to get my original d: back but the OneKey recovery, just restores the C: drive contents and does not mess with the partitions.
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Thanks.

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How to add more disk space into /   root file system

Hi All,
Linux 2.6.18-128
can anyone please let us know how to add more disk space into "/" root file system.
i have added new hard disk with space of 20GB,
[root@rac2 shm]# df -h
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/dev/hda1             965M 767M 149M 84% /
/dev/hda7             1.9G 234M 1.6G 13% /var
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LABLE=/               2.0G     0 2.0G   0% /dev/shm
/dev/hdb2             8.9G 149M 8.3G   2% /vm
[root@rac2 shm]#

Dude! wrote:
I would actually question whether or not more disks increase the risk of a disk failure. One disk can break as likely as one of two of more disks.
Simple stats. Buying 2 lottery tickets instead of one, gives you 2 chances to win the lottery prize. Not 1. Even though the odds of winning per ticket remains unchanged.
2 disks buy you 2 tickets in The-Drive-Failure lottery.
Back in the 90's, BT (British Telecom) had a 80+ node OPS cluster build with Pyramid MPP hardware. They had a dedicated store of scsi disks for replacing failed disks - as there were disk failure fairly often due to the number of disks. (a Pryamid MPP chassis looked like a Xmas tree with all the scsi drive LEDs, and BT had several)
In my experience - one should rather expect a drive failure sooner, than later. And have some kind of contingency plan in place to recover from the failure.
The use of symbolic links instead of striping the filesystem protects from the complete loss of the enchilada if a volume member fails, but it does not reduce the risk of loosing data.
I would rather buy a single ticket for the drive failure lottery for a root drive, than 2 tickets in this case. And using symbolic links to "offload" non-critical files to the 2nd drive means that its lottery ticket prize is not a non-bootable server due to a toasted root drive.

What kind of hardware do I buy to add more disk space?

Hi Makeda here:
I like to know how can I increase my disk space on my Mac OSX 10.3.9? What is the name of the product I need to buy? I made a mistake and thought I needed more memory to get more disk space. The tech told me that purchasing more memory using a memory chip will give me more disk space. I found out this is not true. Please advise. Thanks in advance.

Makeda:
First, let us get some info on your computer. Boot up your computer in Panther. Then go to Apple Menu > About this Mac. Click the button More Info. This opens up the System Profiler. The top item in the sidebar is Hardware. Click on this if it not already selected. On the right side under the title Hardware Overview is a list of specs. Copy this and paste it in your response to this post. That will give me the basic information about your computer.
Now to some of your questions. Your computer has two kinds of memory: 1. RAM memory, is like your brain. It holds things in your mind while you process information. When you stop thinking about it the information is not there anymore. 2. Your Hard Disk Drive, is like a notebook in which you write down the stuff you think about. It keeps a permanent record. If the notebook is not big enough it soon fills up and you can't store information anymore.
That is about where you are. You need to increase disk space. There are two basic ways to do that. 1. Remove stuff from your Hard Disk Drive (HDD). That increases the amount of free space, but it does not increase the capacity of the HDD. The leads us to the second way. 2. Replace the HDD. You cannot make it bigger, you have to buy a bigger drive and install it in your computer. That will give you more disk space. The System Profiler will tell you how big your drive is. Just under Hardware in the sidebar is ATA. That is your hard drive. Click on it. On the right side it gives you all the information. Note particularly under Macintosh HD the heading Capacity. It tells you how much your drive can hold. Note, too Available, which tells you how much empty space you have on your drive.
When I upgraded to Panther I thought I was also increasing my "disk" space capacity? True? Or am I confusing myself more?
Panther is an Operating System. It is what makes your computer function. It makes your computer able to run applications. It is installed on your HDD, and adds power to your computer, but it does not add disk space. Only a Hard Drive does that.
OK, that's enough for now. Post back with further questions and I will try to answer in the best way I can.
Good luck.
cornelius
Message was edited by: cornelius

Oracle taking 3 times more disk spaces than MySQL for BLOBs?

Hello there,
We have been migrating one big about 8 TB MySQL table into Oracle 11g R2. The table contains biometric data in 18 BLOB columns - it's a kind of storage table for all biometric information in the form of BLOB. The avg. row length is about 140KB. We had a rough estimation - it might take about 12 TB of disk spaces after migrating the thing into Oracle. We planned to put this table in a 32K bock size tablespace. The table contains about 85 million records.
After we finished loading the data, we discovered that about 20 millions of records already consumed more than 7 TB of disk spaces! In this fashion, we might end up with consuming 30TB of disk spaces after loading the 85 million of records. The only thing at this moment I am thinking about is to reduce the PCTFREE parameter to 2% instead of 10% - the records will be very rarely updated. This will save about 2TB of disk spaces from that 30TB, I guess.
On top of your head, do you have any quick thoughts about the possible reasons of such abnormal (?) disk consumption - it is taking about 3 times more disk than MySQL database. What would be the best way to debug the problem - where to look at?
FYI- All the storage parameters of the table has been kept default - just mentioned the tablespace name while created the table. We have been using SQL*Loader with DIRECT mode to load the data.
Thanks for your cooperation!
Regards.

Hi,
We are using the old BLOB - and not compressed yet.
The machine is not remotely accessible, I will get the DDL later on.
FYI, we did not mention any storage option for the table except the tablespace name. Earlier, I looked at the dba_lobs, dba_segments, dba_extents and had the following few information -
* All the blob columns has "initial_extent" 163840 [from dba_segments]
* Block allocation gradually increased, not uniform (extent_id 1 -> blocks 2, ... extent_id 14 -> blocks 32... extent_id 77 -> blocks 256... extent_id 938 -> blocks 2048 [from dba_extents]
* CHUNK is 32768 for all lob segments
* RETENTION is 900
* No value for PCTVERSION
Thanks for your time!

I need more disk space how do I do this?

need more disk space how do I do this?

First, empty the Trash if you haven't already done so. Then reboot. That will temporarily free up some space.
Use a tool such as OmniDiskSweeper (ODS) to explore your volume and find out what's taking up the space. You can delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one.
Proceed further only if the problem hasn't been solved.
ODS can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
Back up all data now.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
After installing ODS in the Applications folder, drag or copy — do not type — the following line into the Terminal window, then press return:
sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper
You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up.
I don't recommend that you make a habit of this. Don't delete anything while running ODS as root. When you're done with it, quit it and also quit Terminal.

Please for referral information, how can I get more disk space, or actually information and guidelines that can have enough free disk space. How, I have to delete documents or downloading to another drive.

Please for referral information, how can I get more disk space, or actually information and guidelines that can have enough free disk space. How, I have to delete documents or downloading to another drive. (The problem is that Safari could not download the file "iTunesSetup.exe" because there is not enough free disk space.Try deleting documents or downloading to another drive) ... Perhaps this is the main problem why can not open iTunes and inscription is: the folder "iTunes" can not be found or created, and is required. The default location for this folder is inside the "Music" folder. - And after options ok, appears option: Choose iTunes Library with inscription iTunes needs a library to continue. You may choose an existing iTunes library or create a new one - but still following options Choose Library and the following options can not open iTunes ... Please for instructions on how to eliminate the problem or eror ...
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Model Name: MacBook Pro
Model Identifier: MacBookPro7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2,4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
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Hardware UUID: 94647506-C5D0-5D73-BC7F-FC680D238F43
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<Personsl Information Edited by Host>

buy an external HD 1TB for $60
NO notebook is a mass storage device, so dont try to turn it into one, it doesnt work that way.
Unless youre using it every couple weeks, its static data and should be on an external HD
In the case of a Macbook Air or Macbook Pro Retina with ‘limited’ storage on the SSD, this distinction becomes more important in that in an ever rapidly increasing file-size world, you keep vital large media files, pics, video, PDF collections, music off your SSD and archived on external storage, for sake of the necessary room for your system to have free space to operate, store future applications and general workspace. You should never be put in the position of considering “deleting things” on your macbook SSD in order to ‘make space’.
Professionals who create and import very large amounts of data have almost no change in the available space on their computers internal HD because they are constantly archiving data to arrays of external or networked HD.
Or in the case of the consumer this means you keep folders for large imported or created data and you ritually offload and archive this data for safekeeping, not only to safeguard the data in case your macbook has a HD crash, or gets stolen, but importantly in keeping the ‘breathing room’ open for your computer to operate, expand, create files, add applications, for your APPS to create temp files, and for general operation.

"Create alternate versions without using extra disk space" Really?

"Create alternate versions without using extra disk space" says Apple. But is that really true? Because, from what I understand, for Aperture's OS Integration (with the Media Browser) to work, Aperture has to render Previews of all your photos first. So, any alternate versions that you create, do exist on your Hard Drive in the form of an actual file (e.g. a JPEG).

Reuben Feffer wrote:
"Create alternate versions without using extra disk space" says Apple. But is that really true? Because, from what I understand, for Aperture's OS Integration (with the Media Browser) to work, Aperture has to render Previews of all your photos first. So, any alternate versions that you create, do exist on your Hard Drive in the form of an actual file (e.g. a JPEG).
As Ian notes, it's smaller than a RAW - also smaller than an alternate PSD you might make, or duplicating a background layer in a PSD.
Also though, you don't have to have previews for everything - I find what I do is leave automatic preview generation turned off and then just generate previews for images that I like the end result of. This lets you explore alternate versions with essentially no addition space used.

Time Machine drive reporting more and more disk space available

OK, so I've been using Time Machine since 28-OCT-2007 and all my backups are present. I have watched my TMDrive (Buffalo 500GB Fire Wire) report as little as 20GB available and slowly over the past 30 or so days report 205.42 GB now available. Any sizable downloading I do is pointed at another external HDD and that is listed in the Do NOt Backup list. I understand how hourly and daily works, but to see such drastic swing in available disk space seems a bit odd. Has anyone else seen this?
Message was edited by: brenodo

Brenodo,
As backups are thinned, you will see a reduction in the amount of space used on the TM drive. This is entirely normal. Keep in mind that TM is designed to maintain a "restorable" copy of your system, and all of your user files, past and present. This represents a discreet amount of data which is only added to in small increments, really... as you say, any large downloads are going to a dedicated external.
While TM might temporarily use much more disk space to manage its backups, the thinning process will eventually weed out everything that is unnecessary, as you are now seeing. I wouldn't be surprised if you begin to see the free space being used again, at some point, and the cycle will begin anew.
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Hi herrmaec,
We have been working on the same problem. How did you set up ftp? We followed the instruction but ping from another machine doesn't work.
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Use more disk space from 8K block_size to 16K block_size

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