Backup Issues - Veritas Backup Exec

This is a discussion on Backup Issues - Veritas Backup Exec ; On all of our servers we're doing FULL backups every weeknight - this makes restoring straightforward. We are using a Compaq external 20/40 GB DLT Drive for each server. Issue 1 - File and Print Server. Over the last 2 ...

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Thread: Backup Issues

  1. Backup Issues


    On all of our servers we're doing FULL backups every weeknight - this makes
    restoring straightforward. We are using a Compaq external 20/40 GB DLT Drive
    for each server.

    Issue 1 - File and Print Server. Over the last 2 years I've added 9 GB to
    our RAID array twice -- we now have 40 GB total (but less than 9 GB free).
    And now it's taking 2 DLT media cartridges to complete each nightly backup.

    Issue 2 - Communication Server. This is our Exchange and
    Intranet server with a 20 GB RAID array. Exchange databases now are about
    6.8 GB and the DocuShare Intranet is about 1.2 GB. It now takes over 12
    hours to complete a backup (& verify) for this server.

    So...my 2 questions:

    1. Should we change to incremental backups on our Files server so that a
    second cartridge is needed only once per week?

    2. How important is it to do a VERIFY for each server -- that would cut
    out some time?

    Or are there better options?

    Thanks in advance for your thoughts!

  2. Re: Backup Issues


    Hi

    When installing Backup Exec/Arcserv in the field we always deslect the Verify
    option as it takes too long.

    Personnaly I would never use the Incremental or Differential system, it looks
    ok on paper but in practice it requires more administration. Also restoring
    Exchange is difficult enough even with a Full backup!

    I think possible options are;
    Add another DLT 20/40 GB DLT Drive to create drive pool so you don't have
    to change the tape, or run another copy of Backupexec and another DLT off
    the other server.

    Look at archiving / housekeeping old mail and files.

    Hope this helps.

    Jason.


    "Andy Hickman" wrote:
    >
    >On all of our servers we're doing FULL backups every weeknight - this makes
    >restoring straightforward. We are using a Compaq external 20/40 GB DLT

    Drive
    >for each server.
    >
    >Issue 1 - File and Print Server. Over the last 2 years I've added 9 GB

    to
    >our RAID array twice -- we now have 40 GB total (but less than 9 GB free).
    > And now it's taking 2 DLT media cartridges to complete each nightly backup.
    >
    >Issue 2 - Communication Server. This is our Exchange and
    >Intranet server with a 20 GB RAID array. Exchange databases now are about
    >6.8 GB and the DocuShare Intranet is about 1.2 GB. It now takes over 12
    >hours to complete a backup (& verify) for this server.
    >
    >So...my 2 questions:
    >
    >1. Should we change to incremental backups on our Files server so that

    a
    >second cartridge is needed only once per week?
    >
    >2. How important is it to do a VERIFY for each server -- that would cut
    >out some time?
    >
    >Or are there better options?
    >
    >Thanks in advance for your thoughts!



  3. Re: Backup Issues

    We also have Compaq 4000's and RAID 5 arrays, one of which is an Exchange
    Server. I've never run a verify on a DLT since I started using them 12 years
    ago under VMS. My understanding is that these devices are quite smart and do
    their own CRC checking. At least, that's what the engineers told me, all
    those years ago. I've never had a problem with a restore. Perhaps someone
    with technical knowledge about DLT's could comment?

    We do the same - full backups every night - great for recovery and restore.
    Pick up a tape - it's got all Tuesday's, or Wednesday's data - can't beat
    it. We also overflowed and went to DIFFERENTIAL, not INCREMENTAL. The
    difference? DIFFERENTIAL is since the LAST FULL backup. Tonight's tape
    contains today's changes and yesterday's (unless they've been overwritten by
    today's). It slowly gets bigger as the week progresses, but there's only one
    extra tape for a full recovery. Use the LAST FULL and the LAST DIFFERENTIAL.
    Still use a different tape each night and you've still got different tapes
    for Tuesday's, and Wednesday's etc. INCREMENTAL is since the LAST BACKUP of
    ANY kind. To do a full recovery, you need the LAST FULL and ALL the
    INCREMENTAL's and you'd better load them in the right order. Not what you
    want when your system's crashed and everyone's on your back to get it up as
    soon as possible.

    We eventually went to 90 GB's, 3 tapes (we get good compression) and 10
    hours, so we're checking out Ultrium devices. We're getting 60GB/Hr from
    them.

    Ken McNulty


    Andy Hickman wrote in message
    news:3ad32236$1@hronntp01....
    >
    > On all of our servers we're doing FULL backups every weeknight - this

    makes
    > restoring straightforward. We are using a Compaq external 20/40 GB DLT

    Drive
    > for each server.
    >
    > Issue 1 - File and Print Server. Over the last 2 years I've added 9 GB to
    > our RAID array twice -- we now have 40 GB total (but less than 9 GB free).
    > And now it's taking 2 DLT media cartridges to complete each nightly

    backup.
    >
    > Issue 2 - Communication Server. This is our Exchange and
    > Intranet server with a 20 GB RAID array. Exchange databases now are about
    > 6.8 GB and the DocuShare Intranet is about 1.2 GB. It now takes over 12
    > hours to complete a backup (& verify) for this server.
    >
    > So...my 2 questions:
    >
    > 1. Should we change to incremental backups on our Files server so that a
    > second cartridge is needed only once per week?
    >
    > 2. How important is it to do a VERIFY for each server -- that would cut
    > out some time?
    >
    > Or are there better options?
    >
    > Thanks in advance for your thoughts!




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