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Thread: NSS > 2TB + PSM 5 = Epic Fail

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  1. #1
    Ron Neilly NNTP User

    NSS > 2TB + PSM 5 = Epic Fail

    Sigh. Been posting to the Portlock Storage Manager Forum for about a year
    now looking for an answer to the question "Will PSM 5.0 support copy/move of
    NSS pools/volumes larger than 2TB - ie larger than what can be contained in
    a single disk partition?"

    Today I finally got the answer I _wasn't_ looking for - "no". But they are
    thinking about adding it to a future version - no timeframe specified. Well
    over a year ago they posted the same answer, except they said they were
    looking at supporting this in the forthcoming PSM 5. But now they are not.

    Good grief, NSS has had 8TB pool support ever since it came out; PSM 5 has
    been in development for 2 years. What the hell have they added as a new
    feature in PSM 5 - that is justified by 2 years of development?

    So now I have the awesome prospect of doing a data migration (from one SAN
    to another) for a 3.5 TB pool. Preferably something that doesn't take a
    week. Let's play with numbers for a minute.

    Let's say I need this migration to take no more than 48 hours - what data
    transfer rate would I need to have?

    3,500 GB in 48 hours = 73GB/hr = 1.2GB/min = 20MB/sec.

    Easy! Oh but I may need double that if the move consists of a non-parallel
    read/write operation such as tape backup and restore. I can see maybe
    getting that on backup, but no way on restore. So I need some other
    method...( I realize at this point in this posting that I am almost asking
    for support and/or talking to myself; so I apologize. But I am still gonna
    keep going, you of course can stop reading at any time and also need not
    respond at all or respond in a completely off-topic way...whatever.)

    Okay, how about the SCMT? Will it do an in-server filesystem migration? I
    see someone has asked that very question in the proper forum :-)

    Or how about DST? Setup a new pool/volume on the new san and make the old
    pool the shadow or something like that - obviously I haven't taken a close
    look at DST and what I need to make it work and whether or not it is limited
    in some way that makes it inappropriate for my plan...

    Ideas Welcome!

    Cheers,

    Ron


  2. #2
    Join Date
    Aug 2007
    Location
    ...in the US state where the crazy people live.
    Posts
    1

    Re: NSS > 2TB + PSM 5 = Epic Fail

    Ron,

    > Ideas Welcome!


    I think you should take a nap. It's Saturday, which is Nap Day. : )

    Susan
    Novell Community Chat Moderator

    http://forums.novell.com/faq.php?faq=novfor#faq_rules
    http://www.ncci.org NCCIrregulars Web Site
    http://ncci.blogspot.com NCCIrregulars Blog


  3. #3
    Join Date
    Sep 2007
    Location
    High Wycombe, Buckinghamshire, England
    Posts
    11,841

    Re: NSS > 2TB + PSM 5 = Epic Fail

    Susan,

    nah, Saturday is get on with the work you couldn't do during the week
    because everyone keeps giving you new things to do day...

    --

    Shaun Pond



  4. #4
    dan c. NNTP User

    Re: NSS > 2TB + PSM 5 = Epic Fail

    What a bummer, eh?

    Shaun Pond wrote:
    > Susan,
    >
    > nah, Saturday is get on with the work you couldn't do during the week
    > because everyone keeps giving you new things to do day...
    >


  5. #5
    Join Date
    Sep 2007
    Location
    High Wycombe, Buckinghamshire, England
    Posts
    11,841

    Re: NSS > 2TB + PSM 5 = Epic Fail

    Dan,

    it can be...

    --

    Shaun Pond



  6. #6

    Re: NSS > 2TB + PSM 5 = Epic Fail

    On 5/30/09 10:38 AM, Shaun Pond wrote:
    > Susan,
    >
    > nah, Saturday is get on with the work you couldn't do during the week
    > because everyone keeps giving you new things to do day...
    >


    I thought it was surgery for new born day

  7. #7
    Join Date
    Sep 2007
    Location
    High Wycombe, Buckinghamshire, England
    Posts
    11,841

    Re: NSS > 2TB + PSM 5 = Epic Fail

    Jay,

    well it's no skin off my nose...

    --

    Shaun Pond



  8. #8
    Join Date
    Aug 2007
    Location
    Luxembourg
    Posts
    5,142

    Re: NSS > 2TB + PSM 5 = Epic Fail

    I sure people will have ideas for you in the following forum:

    http://forums.novell.com/novell-prod...storage-media/

    --
    Marcel Cox
    http://support.novell.com/forums
    ------------------------------------------------------------------------
    Marcel Cox's Profile: http://forums.novell.com/member.php?userid=8

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