+ Post New Thread
Results 1 to 3 of 3
Enterprise Software Thread, Symantec Backup Exec 2010 R3 performance poor in Technical; Hi All I am investigating some performance issues we are having backing up to tape using BE 2010 R3. THe ...
  1. #1
    ranj's Avatar
    Join Date
    Feb 2006
    Thank Post
    Thanked 42 Times in 32 Posts
    Rep Power

    Symantec Backup Exec 2010 R3 performance poor

    Hi All

    I am investigating some performance issues we are having backing up to tape using BE 2010 R3.

    THe way our process works is we do a B2D2T we have a backup server where we have Veeam installed which we use to backup to disk. We then use BE 2010 R3 to backup the veeam file created (one large 1tb .vbk file). This veeam file is a file which Veeam creates when creating backups of our VMs in VMware.

    This file has already been compressed within Veeam. We then backup this 1 file to tape onto our IBM TS3200 tape library directly connected via 6GB SAS on the backup server. We recently upgraded the unit in here to LT0-5. We were using LT0-4 before but the performance we are getting is the same as LT0-4.

    Firmware upgrades on the tape library unit, server have all been done. BE is fully patched up on the server. Its running Windows 2008 32-bit with 4gb ram.

    We have tried numerous tests with buffer settings but still the same performance. We have turned encryption off and compression within BE only off.

    I am running out of ideas and am now thinking could it be that because this veeam file is already compressed. Is symantec just slowing down because its already compressed?

    Is there any advice on backing to tape changing settings within BE? I have tried numerous settings within BE. Currently the device is set as the following:

    Compression enabled

    block size (per device) - 64kb

    buffer size (per device) - 1mb

    buffer count - 10

    high water count - 0

    read single block mode - off

    write single block mode - off

    read scsi passthrough mode - off

    write scsi passthrough mode - on


  2. #2
    limbo's Avatar
    Join Date
    Aug 2005
    Thank Post
    Thanked 41 Times in 36 Posts
    Rep Power
    Hey Ranj,

    Firstly I do not think there was a huge improvement in maximum speed from LTO-4 to LTO-5 (around 15% iirc) - the new technology was mainy around additional capacity.

    Secondly, if the time taken / rate of transfer is totally unchanged then it is more likely that the bottleneck is something to do with the server processing, and compression would be the most likely culprit.

    You chould have enough capacity on the tape without compression so why not give it a go?

  3. Thanks to limbo from:

    ranj (6th February 2012)

  4. #3
    DMcCoy's Avatar
    Join Date
    Oct 2005
    Isle of Wight
    Thank Post
    Thanked 508 Times in 445 Posts
    Rep Power
    What is the sustained read performance of the disk device you are reading the backup from?

+ Post New Thread

Similar Threads

  1. Replies: 1
    Last Post: 22nd September 2011, 05:08 PM
  2. Replies: 3
    Last Post: 24th January 2011, 01:56 PM
  3. Replies: 1
    Last Post: 7th December 2010, 10:30 AM
  4. Symantec Backup Exec 2010 released
    By DrCheese in forum Windows
    Replies: 3
    Last Post: 25th February 2010, 10:56 PM
  5. Symantec Backup Exec 10d Price
    By john in forum Educational Software
    Replies: 7
    Last Post: 31st October 2006, 10:42 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts