Performance statistics on disk to disk backup (Rman) on OEL v4.5
We just migrated from AIX running Power processor to Oracle Enterprise Linux v4.5 running on IBM xSeries 3850 M2 (Intel Xeon Quad Core). The RMAN backups are taking twice as long as on AIX (it was taking 3.5 hours and now it is taking 7 hours) to landing space (disk to disk backup). Does anyone have any suggestion how to narrow down the different?
This is a very complicated issue to handle in this forum. This could be anything from an RDBMS setup issue to a host configuration issue to a SAN or network issue. "Slow performance" just isn't specific enough to go into here.
If you can, I recommend that you open a trouble ticket with Oracle (http://metalink.oracle.com).
Or, search the Knowledge Base at that same web site.
Other folk here may be able to help, though.
Similar Messages
-
Rman backup to disk 2 Minutes; Backup to tape hours
Solaris 10
Oracle 10gR2
MML Netbackup 6.0
I have the following scenario
Rman backup to disk < 2 Minutes; Backup to tape takes hours
and occassionaly fails with a media manager layer error.
Any suggestions to speed up the backup to tape?A backup of under 2 minutes . . . not very big.
A backup to tape of hours?
I don't think that is your problem . . . I think you need to check and see if your tapes are valid. If Oracle fails at the end of a backup to tape, it sounds like the tapes are 'bad'.
If the tapes are good: Then look at why it is so slow - I would 'guess' network backup.
Can you backup to disk and then send them to tape?
Solaris 10
Oracle 10gR2
MML Netbackup 6.0
I have the following scenario
Rman backup to disk < 2 Minutes; Backup to tape takes
hours
and occassionaly fails with a media manager layer
error.
Any suggestions to speed up the backup to tape? -
Recovery of files , drive missing, yet backups successful using GPT disk 4TB USB backup destination
I have an HP ML310e G8 v2 server with 4x1TB drives in RAID 5. I created 2 logical drives in the array. Disk0 (C:\) is 250GB and has the Windows Server 2012 R2 Essentials OS installed formatted NTFS with MBR. Drive1 (E:\) is 2.5TB formatted NTFS with GPT
this drive is used for the server shares and other client data.
I am using Azure Online backup to protect the critical client data.
Local backup - I am also using Windows Server Backup to perform a full system, bare metal backup. This backup writes to a 4TB western digital USB 3 drive, formatted NTFS and using GPT.
The Problem is when I attempted to perform a test recovery of a file from the local backup using Windows Server Backup. I am able to browse files to recover on the C:\ but the E:\ does not appear as a location to perform a recovery from. Yet the WBS configuration
indicates that backups have been running successfully and that the backup size corresponds to the proper data size for the full server (approximately 600GB).
Does anyone know why the E:\ does not appear as a drive to browse and recover files from?
From the reading I did I "thought" that the >2TB and 4k sector size problems from Windows Server Backup on 2008 had been fixed in 2012R2. Maybe my problem is not related to this but I can't think of any other possible problem.
MZHi MZ,
Based on your description, I’m a little confused with this issue. You describe “I am able to browse files
to recover on the C:\ but the E:\ does not appear as a location to perform a recovery from.” Would you please provide a screenshot? It may help me to understand that which step you failed to recover. (Please hide all private and protected information.)
Meanwhile, would you please open WindowsImageBackup folder and navigate to that backup file (VHDX file). Please
mount it, and assign a drive letter to it in Disk Management. Then please check if you can find all files.
Hope this helps.
Best regards,
Justin Gu -
Verify Disk failed on backup, but Repair was successful: new backup anyway?
Hi,
I performed an incremental backup to a FW400-attached WD My Book, using Carbon Copy Cloner. The clone completed with no reported errors.
I performed a Verify Disk with Disk Utility on the new clone, and errors were reported. Under "Checking Multi-Linked Files" there was an "Incorrect file hard link count" error, or similar. I was told that a Repair Disk was essential. When I ran this, under "Checking Multi-Linked Files" Disk Utility reported repairing quite a long list of "orphaned i-nodes". Must have been about a hundred. However, at the end it reported that the Disk Repair was successful, and a further Verify Disk reported no errors.
Should I trust this clone, or do it again to make sure?
Thanks.Hi,
That's the way I was thinking, but I guess I was hoping to get some confirmation from someone who knows about the specific error and how Disk Utility repairs such errors before going through the whole brouhaha.
Anyway, it's moot now, as I've just discovered that Western Digital officially declared all their external drives unsuitable for booting on Macs back in March. See http://forums.bombich.com/viewtopic.php?t=11152 for details and links. So, the drive's going back to the retailer anyway---hopefully.
S. -
Disk Utility Image backup - 8 hours and counting. ?
So I'm doing a backup image in Disk Utility. Started up from the install DVD 10.6 and went into D U and making an image of my Macbook's (2008) HD (250gb) and saving it to a WD usb 2.0 external drive. I'm going on 8 hours. I know it takes a while but I swear my iBook from 2002 is faster on USB 1.0 . Is this normal? I feel like I would have been better off putting it in Target Disk Mode and used another Mac to back it up instead. I want all my data after the restore so I thought the image was the best way to go. This can't be the fastest way. Would this go any faster on FireWire? I know the file transfer itself can't take 8 hours can it? I'm miffed. Any advice?
PS - Used SuperDuper a month ago and that took 7 hours.Thomas A Reed wrote:
+_Also, why did you boot from the install disk? That is absolutely not necessary. I'd also absolutely, 100% recommend against using disk images for backup. Large disk images are too easy to corrupt, which will cause you to lose everything they contain. They're just not good enough for backups. Use [Carbon Copy Cloner|http://www.bombich.com> or SuperDuper instead...+_
I was following Apple's instructions http://support.apple.com/kb/ht1553
I had it backed up in SuperDuper and Time Machine as well. I knew I could get all of my data with an image and I've never used SD for importing data, only whole disk images.
_+You didn't say how full your hard drive is. If your drive isn't anywhere near capacity, it shouldn't be taking that long. If it is too close to capacity, that could be part of the problem.+_
Yeah, I was at 240/250gb. I didn't think about that. Thats also good to know.
The external 1TB WD USB2 drive I used was the same drive that a few months back I transferred 900+ gigs to from my W7 computer with a esata drive. (1tb WD usb2 to esata 1tb through my W7 PC). While I know the esata is super fast, that WD 1TB USB2 drive "was" fast (35 - 50 sustained speed?) and it took maybe six hours for 900+gb. Thats why I'm confused.
All in all I really don't care if it takes that long if I know that ahead of time. It's one thing to hit a button and go to sleep, but another to get it done ASAP because it's 5am and I should have been done by midnight at the latest. I need to use it all day today.
Thanks guys.
Message was edited by: dtommyd2 -
I am trying to do a full Time Machine Backup to a new external disk. The backup starts, and it says "Time remaining about 4 days." That seems like a very long time, but the real problem is that the computer "logs off" after a few hours, and the backup stops. The system preferences are set to "Never" for Computer sleep and Display sleep. The computer does not ordinarily log off automatically, but it has done this twice since I started the Time Machine backup.
If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console 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 Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
If all you see are messages that contain the word "Starting," you didn't clear the search box.
If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Some personal information, such as the names of your files, may be included — anonymize before posting. -
Is there any way that I can get back my iPhoto? After having hard disk replaced (no backup) and the operating system has been updated to Lion (no disc) I am wondering if iPhoto can be reinstalled with my Leopard discs?
As Niel pointed out, yes. The disk probably will look like the MBP disk (4) in this screenshot;
OT -
I'm getting the following error message from my Time Machine for two days now:
"The backup disk image “/Volumes/Backup Files/Burke iMac.sparsebundle” is already in use."
I haven't changed anyting lately and can't find the problem...Try just rebooting the TC.. or restart of the whole network, in correct order.. modem.. router/TC.. clients.
Read C12 here.
http://pondini.org/TM/Troubleshooting.html
Look at the more like this on the right. it is a very common problem.. especially since ML we have this question 5 times every day. -
For over two weeks now I have been frustated and not having my TIme Machine back up to my 1tb external drive. I dont understand why now its a problem. It keeps saying
"This backup is too large for the backup disk. The backup requires 345.74GB but only 289.80GB are avialable. Time Machine needs work space on the bakup disk, in addition to the space required to store backups. Open Time Machine preferences to select a large backup disk or make the bakup smaller by excluding files." So I have already excluded almost all of my files, and even deleted the backup disk yet, that quote still keeps popping up. I am truly at a wall with this. I have a Mac OS X version 10.7.5. CAN SOMEONE HELP ME PLEASE????If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console 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 Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Some personal information, such as the names of your files, may be included — anonymize before posting. -
My external drive won't mount. Disk Utility says it can't repair disk and to backup the disk and reformat, but how can I do that if it won't mount?
See mount section in 1st linked article.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk -
My time machine will not back up. I get a Time Machine Error message that reads: "The backup disk image "/Volumes/Backup/(myname)'sMacBook Pro.sparsebundle" is already in use.
I have not been able to back up for two weeks, I think this occurred after an update to the operating system, but I am unsure.
How do I correct this problem?Have you tried restarting the computer? Also, see Time Machine Error from this pages sidebar under More Like This.
-
Failure while compacting the virtual disk on the backup location
Hi!
I have a following error while doing scheduled backups: "Failure while compacting the virtual disk on the backup location"
OS is Server 2012 R2 Essential
I use a dedicated HDD for backups. Its a WD GREEN 3TB.
Any suggestions?
LOGS:
EROOR: The backup operation that started at '2014-06-27T00:57:25.744931200Z' has failed with following error code '0x807800C5' (There was a failure in preparing the backup image of one of the volumes in the backup set.). Please review the event details
for a solution, and then rerun the backup operation once the issue is resolved.
WARNING: The backup operation that started at '2014-06-26T16:30:31.944377600Z' has completed with errors. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.Hi,
Try to back up to local drive to check if the issue still exists? The issue could be the backup set was corrupted. You could refer to the thread below to troubleshoot the issue:
Server 2012 backup fails while preparing one of the local volumes with "the mounted backup volume is inaccessible"
http://social.technet.microsoft.com/Forums/windowsserver/en-US/20ab10a8-fb39-451f-9076-46a6188b2139/server-2012-backup-fails-while-preparing-one-of-the-local-volumes-with-the-mounted-backup-volume-is?forum=windowsbackup
Regards,
Mandy
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place. -
I can't install OS X mountain Lion to my macbook pro. It says when I'm trying to choose the disk, (This disk is used for time machine backups'. What can I do about it? thanks!
From the Finder's Go menu, choose Computer:
Double-click your hard disk icon. It is usually named "Macintosh HD":
Look for this folder:
Drag it to the Trash. -
I have a problem with my Time Capsule. The message I get is: Time Machine could not complete the backup. This backup is too large for the backup disk. The backup requires 111.27 GB but only 42.1 GB are available. As a result, my backups are no longer running. My umderstanding was that the Time Capsule would automatically delete old backups to make space. Can anyone help me figure out how to get my backups to run again?
If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console 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 Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Some personal information, such as the names of your files, may be included — anonymize before posting. -
I am getting the error ¨This backup is too large for the backup disk. The backup requires 1.42 TB but only 998.49 GB are available¨ when I try to do a time machine backup. I have a Retina Macbook Pro and am only using 250 GB on the internal drive. My 1TB external drive that I am trying to use has been complete reformated (case sensitive journaled) and therefore completely empty. Any ideas why time machine is saying my drive has 1.14 TB when its capacity is no where near that?
Well, at this point I might recommend that you reboot your MacBook Pro while simultaneously holding down the Command - R keys and booting into the Lion Recovery Partition. There I would enter the "Disk Uility", highlight your Mac HD in the left hand column to select it and run "Repair Disk", and then run "Repair Permissions" twice. They may resolve the hard drive's confusion in Time Machine.
Hope this helps
Maybe you are looking for
-
Enable Payment details in Purchase Order History in ME23N
Please provide the solution to enable the Payment details information along with GR, GI, MIRO and Payment details in Purchase Order History TAB in ME23N Sudheer
-
Adobe Acrobat Pro (CS3) Slow Scrolling
Scrolling in any .pdf document opened in Adobe Acrobat Professional 8.1.7 is very sluggish. All other applications are fine including Acrobat Reader 8 or 9. Any suggestions?
-
Safari and other tasks fail to launch
I have a problem similar to others' descriptions of Safari not launching, but have not found a repair yet. Hardware is a G4 PowerBook, connected by built in ethernet to local router connected to cable service. System is 10.4.6, freshly installed foll
-
I was recently asked to help create a query at my company to search for date gaps in employment status history. My table data looks similar to this employee_id employment_status beg_date end_date 1 Active 1990-01-01
-
I have forgot my password and now my pod is disabled how do i get out of this?
I have a ipod touch 2nd Gen. I have forgotten the password and now have tried so many times it is disabled can this be undonend how? Thanks