Online Backups - Sharing

I have a few MacBook Pros and a Time Capsule, and a MobileMe family pack.
Here is what I've set up so far:
1. Separate accounts on the Time Capsule for each laptop to backup onto
2. An 'shared' account on the Time Capsule that I was hoping to use as a file server, where each laptop could access (including remote access via the Back To My Mac feature)
3. The "Shared" folder on each MobileMe account also allows sharing of files.
Sharing questions:
Is it recommended to work on files right off iDisk? Specifically the "Shared" folder on iDisk? Or should we use a Shared account on the Time Capsule?
Backing up:
If using iDisk as the main files server, is there a way to get Time Capsule to backup the MobileMe accounts too? ie. backup the iDisks?
Or if using the Time Capsule as the file server, is there a way to mirror that onto iDisk automatically? Another issue with this is that there is no Time Machine for the Time Capsule to truly back these files up on a regular basis.
I am trying to get Time Machine to do the backups with a mirror of all the data on iDisk as my offsite backup. Is this too much to ask for??

Sorry yes - typo! HH4.
The connection details are:
16:10:40, 01 Aug.
(700712.500000) DSL is up
16:10:39, 01 Aug.
(700711.550000) DSL noise margin: 20.00 dB upstream, 6.00 dB downstream
16:10:39, 01 Aug.
(700711.480000) DSL line rate: 448 Kbps upstream, 3936 Kbps downstream
The results of the Speedtest are as follows:
Download speed achieved during the test was - 3.66 Mbps
For your connection, the acceptable range of speeds is 1.2 Mbps-4 Mbps.
IP Profile for your line is - 3.47 Mbps
Upload speed achieved during the test was - 0.34Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.45 Mbps
I'm happy with the download speed, so don't want to compromise that if by asking to move to ADSL2 would mean it might fall to where it used to be with Demon.
Thanks for you advice.
Paul

Similar Messages

Online Backup / Sharing Tool will not let me log in

I am trying to set up the online backup and sharing, using the downloaded software for a Mac running OS 10.7.3. I have installed, activated, etc, etc, etc. HOWEVER, the desktop tool will not accept any combination of ID and password, including the Primary Account ID and password under which online backup and sharing was purchased. I have re-downloaded, re-installed, and re-started multiple times, and continue to get "invalid user name or password".
What is the trick I'm missing here? Which ID and Password does this beaties want?
MJ
Solved!
Go to Solution.

After chasing through online chats and two phone calls, the answer is: the download software doesn't work with OS 10.7 -- would have been nice to know that up front. Their plans to upgrade to support 10.7 are 'some time this year'.
MSJ

Can't access online backup and sharing web site

Does anyone know how to access the Online Backup and Sharing web site from a computer that does not have the O/B/S software installed? I used to be able to go to My Verizon/My Services/Internet and hit "Launch" for O/B/S, and the link would go directly to the web site for uploading or downloading material. Now, that link takes me to a Verizon page that asks to activate the O/B/S service, and wants to download the software. My O/B/S service was activated years ago and has worked until recently without the software installed. There is no other obvious way to get to the O/B/S web site. (If it matters, I tried this in both IE 9, with Windows 7 64-bit, and Safari.)
After some effort, I got the help number for the outside vendor that runs the O/B/S service. They say that the Verizon web site should link directly to their O/B/S web site, regardless of whether or not the O/B/S software is installed locally, but that the failure to do so is entirely an error of Verizon's on the Verizon web site and they have nothing to do with it. They also said there is no way to bypass the Verizon web site to get to a Verizon O/B/S account on their web site. They said they have received many complaints about this from Verizon O/B/S customers, and that the same problem has even arisen when the O/B/S software is installed on the local computer.
So does anyone know if it is really necessary to install the O/B/S software on any computer used to access O/B/S, and if it is now impossible to access the material from any other computer? That would be a major reduction in the usefulness of the service that was not announced anywhere that I know of. I saw a strong of comments on this issue in the Forums from a few years ago, but the conclusion was that the problem had been fixed. It seems to have arisen again.

Anthony, I tried to private message you several times, but I kept getting an error message stating that my message had invalid HTML that was being removed, and to resend. It did not actually have any HTML, and hitting the resend button just led to the same message.
Also, since my last post, I downloaded the OBS software onto my computer. This gave me access to OBS from that computer. However, even after doing this, I cannot use the old method of directly getting to the OBS web site from My Verizon. The link from "Launch" does not work either on the computer with the OBS software or on any other computer. Rather, the link goes only to the Verizon page saying that my OBS service has not been activated (which it surely has been) and asking to download the OBS software.
If this is happening to everyone and not just to me, this means that material stored on OBS is only available from a computer that has the OBS software downloaded on it. That is certainly not supposed to be the case, and it would make OBS much less useful.
Again, the OBS technical people said that this was a problem that they knew about, but it was entirely a problem with the Verizon web site that they could not do anything about.

Online Backup and Sharing issue

I am having trouble with the restore part of my Online Backup and Sharing. Whether I select specific files or a folder, the history shows that the backup was successful, but when I try to find it in the list of files that can be restored, the files that I want are not there.
I can see the structure of folders and sub-folders, but the specific files are not anywhere in my restore list.
Also, there seems to be two different structures with some of my folders in one and some in another with some redundancy. Neither is complete.
Is there a way that I can wipe what is in my online storage completely clean and start over?

There is a specialized team who troubleshoots issues with the backup and sharing program.
A dedicated internal phone number (866-770-6800) has been provided for hand-offs to the VOL Backup & Sharing Technician.
Hours of Operation are Mon - Sat 7am - 11pm EST.
After hours the customer will be asked to leave a message and someone from VOBS support will return their call during business hours.
Anthony_VZ
**If someones post has helped you, please acknowledge their assistance by clicking the red thumbs up button to give them Kudos. If you are the original poster and any response gave you your answer, please mark the post that had the answer as the solution**
Notice: Content posted by Verizon employees is meant to be informational and does not supersede or change the Verizon Forums User Guidelines or Terms or Service, or your Customer Agreement Terms and Conditions or plan

Verizon Online Backup and Sharing using FTP

Can I access my Verizon Online Backup and Sharing 250MB with an FTP client instead of installing the backup software?

no ftp, only through the software.

Verizon Online Backup and Sharing Error Message

Started getting Verizon Online Backup and Sharing error message at startup about two weeks ago and can't connect via VISS. Anybody else out there having this issue? Tried downloading update but can't open the file. Also seems to be affecting VIHA. - takes forever to open. Heard syncNshare has been hacked. Is this true?

Sorry to hear about the problems with your Verizon software. So we can get more information from you, I have copied your post to our private support board. Please refer all correspondences to there from here on out. You can easily get to the private support one of two ways. In the email you signed up for the forums with, you will receive a link to click on. Make sure you are already signed into the forums before clicking on this link. Another way of getting there is by clicking on your username anywhere you see it in the forums. This brings you to your account profile. Scroll down to the section labeled "My Support Cases" . In there you will see the link to your case.
Anthony_VZ
**If someones post has helped you, please acknowledge their assistance by clicking the red thumbs up button to give them Kudos. If you are the original poster and any response gave you your answer, please mark the post that had the answer as the solution**
Notice: Content posted by Verizon employees is meant to be informational and does not supersede or change the Verizon Forums User Guidelines or Terms or Service, or your Customer Agreement Terms and Conditions or plan

Online Backup and Sharing

I've been trying to use this software but keep getting an error 1001. So it won't install.
How can I get this fixed?

Hi MissMiguel, you would have to call into Verizon Online Backup and Sharing Technicians for assistance. Error 1001 could mean various different things including, not enough memory, the application log is full, maybe a version was download on one attempt and subsequent attempts are interfering, so we would have to instruct you on how to clear it. So please give us a call at 866 770-6800.
Thanks, Constance
Constance
Verizon Telecom
Fiber Solution Center
Notice: Content posted by Verizon employees is meant to be informational and does not supercede or change the Verizon Forums User Guidelines or Terms or Service, or your Customer Agreement Terms and Conditions or Plan. Follow us on Twitter™!

No web sign in access for Verizon online backup and file sharing - HELP!

I need to sign-in via web browser to my backup files in my Verizon Online Backup and File Sharing service. The Verizon site redesign redirects the old URL with a sign in to a sales page with no way to reach my stored files.
I contacted Verizon support more than a week ago about this asking for a URL with a sign in option to the cloud, was told that it was a problem affecting many customers (obviously eveyone with the online backup and filesharing service!) created by the redesign and that they would have a page created to allow login within 24 hours. I've heard nothing back and still have no access.
I made very clear that this was a HUGE problem for me, as I'm out of the country and rely on file access, and was on deadline for a critical professional project. The support tech I was on live chat with assured me they were working on it and that he would contact me via email as soon as it was resolved. Lots of apologies, etc. but now, a week later ... still no access and no contact. Astonishingly unprofessional.
When I tried again to find a link and/or contact support on Friday I was given no option to file a support ticket, chat with support or do any other kind of follow up. I've tried every search string option possible, including the name of the service with "sign in" appended (the Verizon nomenclature)--site searches a week ago for the service name returned null results. Web searches produce summaries from the old "My Services" page that include "sign in" but those links now redirect to the sales page that tells me how great it is I'll be able to access my files with a web browser with Online Backup and File Sharing. But no option to access the service.
Has anyone figured out a workaround or have a saved URL that still resolves to a Sign In portal?
I grow more desperate by the day. Thanks for any assistance.

I just wasted a lot of time on this same issue -- it turns out I couldn't find my way into the web application because I normally log into a subaccount, and you have to be logged into the primary. I had tried logging into the primary but apparently hadn't tried all possibilities from there.
So I chatted with Verizon support and got the phone number for Online Backup support, left them a message (because their hold music is so repellent I couldn't stand to remain on the line, maybe that's deliberate) and got called back about four hours later (and a second callback the next day, since I hadn't responded to the the voicemail they left on the first callback).
So here are the instructions (until they change the web site again...)
1. log into the primary account (not a subaccount)
2. click My Verizon
3. click My Services on the left
4. click Broadband Essentials and Extras (right under My Services)
5. click the Manage button next to My Subscriptions
6. click the Verizon Online Backup and Sharing xx MB button
The URL that it lands on is this:
https://vzsharing.verizon.net/application_biz/Secure/Home/Default.aspx

What online backup solution is best with Time Capsule?

I am trying to find an online backup solution that is compatible with Time Machine's Time Capsule. I tried ZipCloud, but while using ZipCloud my Time Capsule failed to backup. It would issue an error something-"sparsebundle" was already in use by another program and therefore Time Capsule would not backup. I worked with ZipCloud's technical support, but was unable to find a solution. Any suggestions would be appreciated.

cfirtion wrote:
It would issue an error something-"sparsebundle" was already in use by another program and therefore Time Capsule would not backup.
See #C12 in Time Machine - Troubleshooting, but that's probably unresolvable.
I don't know how that app is supposed to work, but usually only one user can access a sparse bundle disk image at a time. If the app is supposed to be backing-up your backups, instead of your Mac, that's not a good idea in general and unlikely to work with a sparse bundle anyway.
I did hear from one developer a couple of years ago, about an app that did the backups separately, but used the same rules, etc., as Time Machine, so the operation was, theoretically, separate. I can't recall the name now, though. They had lots of trouble at first, and I haven't heard of them in a while. I'll post back if the name comes to me.
For secondary backups, whether local or not, it's usually prudent to use a different app entirely; that way, you're also protected against a failure of either app.
If you have a lot of data, it's probably not worthwhile trying to back up your entire system to the Internet; it would take much too long to download it all. If your HD failed, you'd have to install OSX first anyway to get connected to the remote location.
EDIT: By the way, just to reduce misunderstandings, a Time Capsule is Apple hardware combining a wireless router and HD; Time Machine is the software that does the backups, to a Time Capsule, internal or external HD, shared drive on another Mac, Mac Server, or (sometimes) a NAS.
Message was edited by: Pondini

Unable to take online backup including logs with HP Data Protector - DB2 9.7 fixpack 8

Dear All,
Infrastructure : -
Database - IBM DB2 LUW 9.7 fixpack 8
OS - HP-UX 11.31
Backup solution - Data protector v7
OEM of tape library i.e. HP asked me to make changes in DB parameters with values as
--> LOGRETAIN to RECOVERY
--> USEREXIT to ON
--> LOGARCHMETH1 to USEREXIT
These parameters are used for activating online backup of Database (DB2 LUW 9.7 fixpack 8).
when backup is initiated from DP, backup happen successfully with option of excluding archive logs where as when we execute backup from DP(Data protector) with option including archive logs. Backup terminates with error.
SQL2428N The BACKUP did not complete because one or more of the requested log files could not be retrieved
Dear all need your expect help.
Thanks in advance.
Neeraj

Hi Deepak,
Thanks for your quicky reply and i have check the directory log_dir and log_archive are having enough space available.
Please find the db2diag.log file.
       Database Configuration for Database
Database configuration release level                    = 0x0d00
Database release level                                  = 0x0d00
Database territory                                      = en_US
Database code page                                      = 1208
Database code set                                       = UTF-8
Database country/region code                            = 1
Database collating sequence                             = IDENTITY_16BIT
Alternate collating sequence              (ALT_COLLATE) =
Number compatibility                                    = OFF
Varchar2 compatibility                                  = OFF
Date compatibility                                      = OFF
Database page size                                      = 16384
Dynamic SQL Query management           (DYN_QUERY_MGMT) = DISABLE
Statement concentrator                      (STMT_CONC) = OFF
Discovery support for this database       (DISCOVER_DB) = ENABLE
Restrict access                                         = NO
Default query optimization class         (DFT_QUERYOPT) = 5
Degree of parallelism                      (DFT_DEGREE) = 1
Continue upon arithmetic exceptions   (DFT_SQLMATHWARN) = NO
Default refresh age                   (DFT_REFRESH_AGE) = 0
Default maintained table types for opt (DFT_MTTB_TYPES) = SYSTEM
Number of frequent values retained     (NUM_FREQVALUES) = 10
Number of quantiles retained            (NUM_QUANTILES) = 20
Decimal floating point rounding mode (DECFLT_ROUNDING) = ROUND_HALF_EVEN
Backup pending                                          = NO
All committed transactions have been written to disk    = NO
Rollforward pending                                     = NO
Restore pending                                         = NO
Multi-page file allocation enabled                      = YES
Log retain for recovery status                          = RECOVERY
User exit for logging status                            = YES
Self tuning memory                    (SELF_TUNING_MEM) = ON
Size of database shared memory (4KB) (DATABASE_MEMORY) = AUTOMATIC(3455670)
Database memory threshold               (DB_MEM_THRESH) = 10
Max storage for lock list (4KB)              (LOCKLIST) = AUTOMATIC(20000)
Percent. of lock lists per application       (MAXLOCKS) = AUTOMATIC(90)
Package cache size (4KB)                   (PCKCACHESZ) = AUTOMATIC(161633)
Sort heap thres for shared sorts (4KB) (SHEAPTHRES_SHR) = AUTOMATIC(480362)
Sort list heap (4KB)                         (SORTHEAP) = AUTOMATIC(50000)
Database heap (4KB)                            (DBHEAP) = AUTOMATIC(3102)
Catalog cache size (4KB)              (CATALOGCACHE_SZ) = 2560
Log buffer size (4KB)                        (LOGBUFSZ) = 1024
Utilities heap size (4KB)                (UTIL_HEAP_SZ) = 10000
Buffer pool size (pages)                     (BUFFPAGE) = 10000
SQL statement heap (4KB)                     (STMTHEAP) = AUTOMATIC(8192)
Default application heap (4KB)             (APPLHEAPSZ) = AUTOMATIC(256)
Application Memory Size (4KB)             (APPL_MEMORY) = AUTOMATIC(40000)
Statistics heap size (4KB)               (STAT_HEAP_SZ) = AUTOMATIC(4384)
Interval for checking deadlock (ms)         (DLCHKTIME) = 10000
Lock timeout (sec)                        (LOCKTIMEOUT) = 3600
Changed pages threshold                (CHNGPGS_THRESH) = 20
Number of asynchronous page cleaners   (NUM_IOCLEANERS) = AUTOMATIC(2)
Number of I/O servers                   (NUM_IOSERVERS) = AUTOMATIC(5)
Index sort flag                             (INDEXSORT) = YES
Sequential detect flag                      (SEQDETECT) = YES
Default prefetch size (pages)         (DFT_PREFETCH_SZ) = AUTOMATIC
Track modified pages                         (TRACKMOD) = YES
Default number of containers                            = 1
Default tablespace extentsize (pages)   (DFT_EXTENT_SZ) = 2
Max number of active applications            (MAXAPPLS) = AUTOMATIC(125)
Average number of active applications       (AVG_APPLS) = AUTOMATIC(3)
Max DB files open per application            (MAXFILOP) = 61440
Log file size (4KB)                         (LOGFILSIZ) = 16380
Number of primary log files                (LOGPRIMARY) = 60
Number of secondary log files               (LOGSECOND) = 0
Changed path to log files                  (NEWLOGPATH) =
Path to log files                                       = /db2/ECP/log_dir/NODE                                                                                        0000/
Overflow log path                     (OVERFLOWLOGPATH) =
Mirror log path                         (MIRRORLOGPATH) =
First active log file                                   = S0000187.LOG
Block log on disk full                (BLK_LOG_DSK_FUL) = YES
Block non logged operations            (BLOCKNONLOGGED) = NO
Percent max primary log space by transaction (MAX_LOG) = 0
Num. of active log files for 1 active UOW(NUM_LOG_SPAN) = 0
Group commit count                          (MINCOMMIT) = 1
Percent log file reclaimed before soft chckpt (SOFTMAX) = 300
Log retain for recovery enabled             (LOGRETAIN) = RECOVERY
User exit for logging enabled                (USEREXIT) = ON
HADR database role                                      = STANDARD
HADR local host name                  (HADR_LOCAL_HOST) =
HADR local service name                (HADR_LOCAL_SVC) =
HADR remote host name                (HADR_REMOTE_HOST) =
HADR remote service name              (HADR_REMOTE_SVC) =
HADR instance name of remote server (HADR_REMOTE_INST) =
HADR timeout value                       (HADR_TIMEOUT) = 120
HADR log write synchronization mode     (HADR_SYNCMODE) = NEARSYNC
HADR peer window duration (seconds) (HADR_PEER_WINDOW) = 0
First log archive method                 (LOGARCHMETH1) = USEREXIT
Options for logarchmeth1                  (LOGARCHOPT1) =
Second log archive method                (LOGARCHMETH2) = OFF
Options for logarchmeth2                  (LOGARCHOPT2) =
Failover log archive path                (FAILARCHPATH) =
Number of log archive retries on error   (NUMARCHRETRY) = 5
Log archive retry Delay (secs)         (ARCHRETRYDELAY) = 20
Vendor options                              (VENDOROPT) =
Auto restart enabled                      (AUTORESTART) = ON
Index re-creation time and redo index build (INDEXREC) = SYSTEM (RESTART)
Log pages during index build            (LOGINDEXBUILD) = OFF
Default number of loadrec sessions    (DFT_LOADREC_SES) = 1
Number of database backups to retain   (NUM_DB_BACKUPS) = 12
Recovery history retention (days)     (REC_HIS_RETENTN) = 60
Auto deletion of recovery objects    (AUTO_DEL_REC_OBJ) = OFF
TSM management class                    (TSM_MGMTCLASS) =
TSM node name                            (TSM_NODENAME) =
TSM owner                                   (TSM_OWNER) =
TSM password                             (TSM_PASSWORD) =
Automatic maintenance                      (AUTO_MAINT) = ON
   Automatic database backup            (AUTO_DB_BACKUP) = OFF
   Automatic table maintenance          (AUTO_TBL_MAINT) = ON
     Automatic runstats                  (AUTO_RUNSTATS) = ON
       Automatic statement statistics (AUTO_STMT_STATS) = ON
     Automatic statistics profiling    (AUTO_STATS_PROF) = ON
       Automatic profile updates         (AUTO_PROF_UPD) = ON
     Automatic reorganization               (AUTO_REORG) = ON
Auto-Revalidation                          (AUTO_REVAL) = DEFERRED
Currently Committed                        (CUR_COMMIT) = DISABLED
CHAR output with DECIMAL input        (DEC_TO_CHAR_FMT) = NEW
Enable XML Character operations        (ENABLE_XMLCHAR) = YES
WLM Collection Interval (minutes)     (WLM_COLLECT_INT) = 0
Monitor Collect Settings
Request metrics                       (MON_REQ_METRICS) = BASE
Activity metrics                      (MON_ACT_METRICS) = BASE
Object metrics                        (MON_OBJ_METRICS) = BASE
Unit of work events                      (MON_UOW_DATA) = NONE
Lock timeout events                   (MON_LOCKTIMEOUT) = WITHOUT_HIST
Deadlock events                          (MON_DEADLOCK) = WITHOUT_HIST
Lock wait events                         (MON_LOCKWAIT) = NONE
Lock wait event threshold               (MON_LW_THRESH) = 5000000
Number of package list entries         (MON_PKGLIST_SZ) = 32
Lock event notification level         (MON_LCK_MSG_LVL) = 1
SMTP Server                               (SMTP_SERVER) =
SQL conditional compilation flags         (SQL_CCFLAGS) =
Section actuals setting               (SECTION_ACTUALS) = NONE
Connect procedure                        (CONNECT_PROC) =
Regards
Neeraj

Best Online Backup

I am looking for the best online backup service. I currently have a time capsule and mozy, but Mozy ended their unlimited space and slowed down my computer significantly. It always ran in the background even when the application was closed. I prefer a service that offers unlimited space and is available for multiple computers. This would be for 3 computers (2 macbooks and 1 PC).

Depending on the size of your Library you cold back it up to an iDisk or any of the online back up sites.
If you just want to back up the photos any of the Photo Sharing sites will work: Personally I use SmugMug but there are many options including flickr. However, check the terms of your account carefully. While most sites have free uploading, you will often find that these uploads are limited in terms of the file size, or the bandwidth you can use per month. For access that allows you to upload full size pics with no restrictions you will need to pay.
I have two offsite back ups - one in my car and one in a relative's house across town. For both I use small portable USB drives. These are a whole lot faster and more convenient to work with than DVDs. The one in my car is updated whenever I add pics to the Library. The one across town I update 4 times a year.
Regards
TD

How does recovery work after an online backup

Hello,
While trying to conceptually understand how backup and recovery works, I came accross a question concerning hot (online) backup.
This is a conceptual question (I am trying to understand how things work), it is not a "how should I proceed/ what should I do step by step" question.
As far as I understand, an online backup of a tablespace can be performed by copying the OS files making up a tablespace while the database is up and being used (i.e. transactions are modifying data in the database). Before the copying of the OS files starts, the Oracle RDMS must be notified that an online backup is being taken via "ALTER...BEGIN BACKUP" (such that some additional information is written to the Redo Log, which may be required for subsequent recovery using the online backup). During recovery the Oracle RDBMS uses the copies of the OS files together with the online and archived redo logs in order to reconstruct all committed transactions and it further uses the UNDO tablespace to rollback open (uncommitted) transactions.
Thinking about this, it seems to me, that in order for this to work in all possible scenarios the undo information from the time the backup was taken may be required. Therefore backup of the UNDO tablespace should be taken as well (see the explanation for this assumption below). However browsing the internet (including the Oracle online documentation) I did not find any statements concerning the backup of the UNDO tablespace when an online backup is taken. Moreover I couldn't figure out when exactly such a backup of the UNDO tablespace must be done, to ensure that the database can be recovered in all scenarios.
I believe that undo information from the time the hot backup was taken may be required e.g. in the following scenario:
Assume we are taking a hot backup of a given tablespace, i.e. we are copying all OS files that make up this tablespace, while the database is potentially being used. Let D1 be one of the datafiles in our tablespace and let transaction T1 modify datafile D1. Let transaction T1 further be uncommitted while the copy of datafile D1 is being made and let (at least some of) the changes from T1 be included in the backup copy D1' of D1 (because DBWR has already written the modified blocks at the time they were being copied to the backup). Let transaction T1 be rolled back after the copy is completed. D1' will thus contain modifications from T1, while D1 will not.
Now some time later the datafile D1 is lost. When recovering D1 from the copy D1', the (archived) redo logs will be applied to D1'. Before that, transaction T1 should be rolled back in the copy D1', because modifications from T1 must not appear in the recovered version of the database.
I do however not understand, where the information to rollback transaction T1 exactly comes from. It may still be in the current UNDO tablespace. I do however assume that rollback information is not kept in the UNDO tablespace forever. I see three possible answers to this
(a) There are some requirements which I missed so far to backup the UNDO tablespace whenever a hot backup is made.
(b) Since the Oracle "RDBMS" has to be notified that an online backup is being done, it might store all relevant undo information (e.g. write it to the redo log) when the tablespace is put in backup mode.
(c) There are situations when recovery is not possible due to "missing old UNDO information".
Answer (b) seems the most plausible to me. I did however not find any confirmation of this and if (b) really is the answer, I would be interested to understand what information is stored where by the Oracle RDMBS and how it is used for recovery.
To summarize I have the following questions:
(I) Is there any requirement to backup the UNDO tablespace together with an online backup of a tablespace, and if so, where is this stated in the Oracle documentation?
(II) What mechanisms ensure that uncommitted transactions can be cleared from the online copy of a tablespace (potentially a long time after the copy was taken)?
(III) Do you know any links (Oracle documentation or other online resources) explaining these datails?
Thank you for any hints and answers
kind regards
Martin

Its a highly technical question and I can be completely wrong due to my very less knowledge but I would attempt to answer still. Hope I say something sensible so bear with me.
As far as I understand, an online backup of a tablespace can be performed by copying the OS files making up a tablespace while the database is up and being used (i.e. transactions are modifying data in the database).Correct. But it would depend on the tool you are going to use to do so.Using o/s level commands like CP and all would require you to manually copy the files to the backup location. Using RMAN, it would be lot easier and RMAN would take care of everything.
Before the copying of the OS files starts, the Oracle RDMS must be notified that an online backup is being taken via "ALTER...BEGIN BACKUP" (such that some additional information is written to the Redo Log, which may be required for subsequent recovery using the online backup). Again, this is a requirement only in the case of user-managed backup . In that case, because of the fractured block issue , its important that the corresponding older information/image of the buffer is also copied in the redo stream and that's done when the begin backup command is used. Using RMAN, this is not needed as RMAN can read the consistent image which it would store in the backup piece, exactly in the same way in which select request is fulfilled by oracle for a dirty buffer which is yet to be made consistent.
During recovery the Oracle RDBMS uses the copies of the OS files together with the online and archived redo logs in order to reconstruct all committed transactions and it further uses the UNDO tablespace to rollback open (uncommitted) transactions.Correct!
Thinking about this, it seems to me, that in order for this to work in all possible scenarios the undo information from the time the backup was >taken may be required. Therefore backup of the UNDO tablespace should be taken as well (see the explanation for this assumption below). >However browsing the internet (including the Oracle online documentation) I did not find any statements concerning the backup of the UNDO >tablespace when an online backup is taken. Moreover I couldn't figure out when exactly such a backup of the UNDO tablespace must be done, to >ensure that the database can be recovered in all scenarios.The reason that its not a must to do so is that if the transaction is yet active, there is no way that Oracle would overwrite the Undo information of it, even if you may come after 100 years, it would be there. The Undo segment would mark those blocks as active undo blockswhich contains the information of that transaction whose status within the transacton table of that undo segment is still marked as active. So its there all the time in the undo tablespace. Now, for an instance, let's assume that the undo is not there as well( it would be but let's assume), the changes made to the undo segment's blocks are also recored in the redo as its just a change happening to any other segment like EMP,DEPT except with the difference that its not done by you but by oracle. So using that information, in the future , if there would be a need to replay those changes, necessary information to do so can be brought up from the redo blocks stored in the redo/archive logs. Yes, if there would be pending transactions that would require Undo information to get them rolled back and you have lost Undo tablespace and have no backup of it , you wont be able to bring back the database as it would be inconsistent and oracle would not let you to do it. In that case, you may require to use hacks to get it up and that would be really tricky situation.
(I) Is there any requirement to backup the UNDO tablespace together with an online backup of a tablespace, and if so, where is this stated in the Oracle documentation?As I said above, it must be there if you are anticipating loss of Undo tablespace. If you have lost it, you would need a backup and all the archive logs and redo logs to recover and get it back to the point where the current database is . Rest, oracle would take care as it would reapply the redo contents of the undo segments over the undo segment and get it consitent.
(II) What mechanisms ensure that uncommitted transactions can be cleared from the online copy of a tablespace (potentially a long time after the copy was taken)?As I said , pending transaction's undo is never overwritten by Oracle. Its always kept and marked as active undo . Only a transaction end would make it elgible to get overwritten and that too won't happen immediately(undo_retention would kick in) .
(III) Do you know any links (Oracle documentation or other online resources) explaining these datails?I have to see if its there some where step by step mentioned and I shall update the reply once I shall find the link. Hoep someone else in the meantime finds it .
HTH
Aman....

Open resetlogs is not working when creating clone db with online backup

Hi All,
I am trying to create a clone database using hot backup of a database .
STEPS THAT I FOLLOWED
LET ----- >CURRENT_DB NAME=DEV
CLONE DATABASE NAME=DEVCLONE
steps PERFORMED FORM DEV DB
- put the database in backup mode using 'alter database begin backup'
- copy all the data files to a different folder
- during copy i have performed some operations on the DB (creating users, tables, dmls etc...)
- in between copying i also performed log switch
- after completion of copy , "alter database end backup"
- created a backup control file in a human readable format (alter database backup controlfile to trace as ........)
steps performed for clone DB side ((DEVCLONE)
- created a parameter file for the database .
- modified the backup control file so that it will point to the location of copied destination of datafiles
- set the ORACLE_SID
- then 'sqlplus / as sysdba
- starup nomount
- run the modified control file ( created a control file for the clone database)
- recover the database using "recover database using backup controlfile"
I have provided the archive files that it was asking for (archive logs that has been generated in DEV DB)
then i canceled the recovery by typing "cancel"
- recover database using backup controlfile until cancel;
then typed "cancel"
- then try to open the database with open resetlogs but it showed below error
alter database open resetlogs
ERROR at line 1:
ORA-01195: online backup of file 1 needs more recovery to be consistent
ORA-01110: data file 1: 'D:\DATA_GUARD\DEVHOT\SYSTEM01.DBF'
please help me on this ......
Thanks

Thanks , now i am able to open the DB in open reset logs mode .
Previously , when i had not taken the archive log after "alter database end backup" , i was not able to open the db with open resetlogs because the
fuzzy status of all the datafile headers were YES .
But after taking the archive log that got generated after "alter database end backup" and applying it on the clone db(Created with HOT backup ) the datafile_header status got changed from YES to NO .
So for that i am able to open the clone db with open resetlogs .
Can you please help me with a small description why this is happening ?
Thanks.......

Database open fails after online backup recovery

Hi Friends
We are trying to set up an additional server using the online backup of our DEV server. We have been following SAP Note 549828 for the same. Having restored the online backup, the open database failed.
To resolve the same, in accordance to SAP Note 549828, we created a backup control file with success using the command
create controlfile reuse set database DEV resetlogs noarchivelog
However on issuance of the command
RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL
we run into an error as to
ORA-00279: change 794638222 generated at 10/25/2007 12:43:20 needed for thread 1
ORA-00289: suggestion : /oracle/DEV/oraarch/DEVarch1_9766.dbf
ORA-00280: change 794638222 for thread 1 is in sequence #9766
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
ORA-00308: cannot open archived log '/oracle/DEV/oraarch/DEVarch1_9766.dbf'
ORA-27037: unable to obtain file status
SVR4 Error: 2: No such file or directory
Additional information: 3
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/oracle/DEV/sapdata1/system_1/system.data1'
We even manually copied the file system.data1 from the source to the target server but to no avail.
Also the SQL command
SELECT FILE#, CHANGE# FROM V$RECOVER_FILE
displays a different change# for system.data1 while it is showing same number for all other datafiles.
Please advice at the earliest as we are struck. Points awaiting their master.
Regards
Lokesh Gupta

Some inputs addition to Erics comments
The problem is you dont have archives ie Offline redo logfiles in correct location.
/oracle/DEV/oraarch/DEVarch1_9766.dbf Here DEVarch1_9766 is archive file which is misssing from location /oracle/DEV/oraarch. To recover DB you need Archives generated during hot backup.
Generally these steps willl give you desired result.
select * from v$logfile;
We normally switch the log files to the number of log groups that exist
alter system switch logfile;
create a Backup directory to hold our hot back datafiles and Archives
When the backup is complete check the backup location to see if all the files are available. We could now either FTP the same to the other system or copy over these files to another location in case of cloning on the same system.
Copy over all the files to their respective filesystems and directories and then edit the file that was created using the backup controlfile to trace. Copy that file to the remote system and edit it accordingly.
check that all the files are in the right location and edit that information in the control file
Once the controlfile is run successfully and you get the statement processed, we can start applying the archive logs that we have moved to the archive log destination directory as per the init<sid>.ora file.
do a recover of the database to its consistent state
recover database using backup controlfile until cancel;
The create control file command only changes the structure of the database and the SID name, the header of the datafiles still hold all the required information. The above command would ask you to input the archive log file names one by one to do recovery or you could choose the AUTO option. Once the recovery process is complete, open the database with the resetlogs option
Regards
Vinod

Getting error while running script for online backup

Hi,
I am running a script for online backup but ended up with an the below error.
*ERROR* [Backup Worker Thread] com.day.crx.core.backup.Backup Failed to create temporary directory
Please help out in resolving this.
Thanks in Advnace.
Maheswar

Hi mahesh,
If you are using backup feature from crx console, I mean http://localhost:4502/crx/config/backup.jsp I can say that we had also some problems with this functionalities.
First off all what you need to check are the permissions, because when you check a source code there is line which creates a File object using a path specified by you to make a backup of repository.
File targetDir = new File(req.getParameter("targetDir", listDir.getParentFile().getAbsolutePath()));
You need to have sure that the proper read write access has been granted for this path.
Another issue is that maybe there was already prepared some hotfix if you are using CQ5.4. Please refer to the following link:
http://dev.day.com/content/kb/home/Crx/CrxSystemAdministration/CRXOnlineBackup.html
and also to this one:
http://dev.day.com/content/docs/en/crx/current/release_notes/overview.html which contains a hotfix number #34797 which was applied to backup.jsp file.
Regards,
kasq

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