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[Q] how to restore SSA after MKSYSb tape restore? - AIX

We have S70 with 6215 SSA adapter and SSA disk array. The SSA (16 disks) current configured as 2 RIAD5 loops and 4 stand along disks. Due to rootvg(on internal hdisk0 NOT SSA) has problem we need restore from MKSYSB disk. My questions are: 1. what is procedures to handle SSA after MKSYSB tape restore? Any doents? 2. does RAID5 configuration will still keep or lose? Thanks....

  1. #1

    Default [Q] how to restore SSA after MKSYSb tape restore?

    We have S70 with 6215 SSA adapter and SSA disk array. The SSA (16
    disks) current configured as 2 RIAD5 loops and 4 stand along disks. Due
    to rootvg(on internal hdisk0 NOT SSA) has problem we need restore from
    MKSYSB disk. My questions are:

    1. what is procedures to handle SSA after MKSYSB tape restore? Any
    doents?

    2. does RAID5 configuration will still keep or lose?


    Thanks.

    aaa Guest

  2. #2

    Default Re: [Q] how to restore SSA after MKSYSb tape restore?

    Hi,

    To my mind, you only need to import VGs from SSA Array after mksysb restore.


    Bye
    "aaa" <leedshell.cais.com> a écrit dans le message de
    news:bf67ri0f1hdrn.newsguy.com...
    > We have S70 with 6215 SSA adapter and SSA disk array. The SSA (16
    > disks) current configured as 2 RIAD5 loops and 4 stand along disks. Due
    > to rootvg(on internal hdisk0 NOT SSA) has problem we need restore from
    > MKSYSB disk. My questions are:
    >
    > 1. what is procedures to handle SSA after MKSYSB tape restore? Any
    > doents?
    >
    > 2. does RAID5 configuration will still keep or lose?
    >
    >
    > Thanks.
    >

    André Guest

  3. #3

    Default Re: [Q] how to restore SSA after MKSYSb tape restore?

    Thanks. After MKSYSB restore, the RAID configuration still their, but Pdisk
    sequence mess up. User to I have Pdisk number from left to right 0-7 and on
    back 8-15. After restore the pdisk number is here and their. I know how to
    change "hdisk" number, but don't know how to change pdisk number?

    In article <46f5896d.0307171703.2844e2d1posting.google.com >, [email]bjstanhotmail.com[/email]
    says...
    >
    >I think the 6215 Raid 5 configuration data is stored on a reserved
    >area of the raid disks by the raid card so it should be ok - the
    >restore won't touch that as long as you restore to internal disk.
    >
    >If you've restored from an up to date mksysb you probably won't even
    >have to do anything. Do you have a record of what volume groups you
    >had before you restored? Just make sure they're still there and
    >accessable after the restore. If they're not you'll have to do some
    >more digging around and maybe importvg them like Andre said.
    >
    >Cheers.
    >
    >
    >"Andr? <a.porruncinifree.fr> wrote in message
    >news:<3f16b2e4$0$12331$626a54cenews.free.fr>.. .
    >> Hi,
    >>
    >> To my mind, you only need to import VGs from SSA Array after mksysb restore.
    >>
    >>
    >> Bye
    >> "aaa" <leedshell.cais.com> a écrit dans le message de
    >> news:bf67ri0f1hdrn.newsguy.com...
    >> > We have S70 with 6215 SSA adapter and SSA disk array. The SSA (16
    >> > disks) current configured as 2 RIAD5 loops and 4 stand along disks. Due
    >> > to rootvg(on internal hdisk0 NOT SSA) has problem we need restore from
    >> > MKSYSB disk. My questions are:
    >> >
    >> > 1. what is procedures to handle SSA after MKSYSB tape restore? Any
    >> > doents?
    >> >
    >> > 2. does RAID5 configuration will still keep or lose?
    >> >
    >> >
    >> > Thanks.
    >> >
    aaa Guest

  4. #4

    Default Re: [Q] how to restore SSA after MKSYSb tape restore?

    As long as you don't have any actual problems there (your VGs are
    varied on and your filesystems are all mounted etc), it doesn't matter
    if pdisk#'s don't match up to the same hdisk#'s. If you need to you
    can translate between the two with ssaxlate, trying to make the
    numbers the same is really only a cosmetic exercise. It probably can
    be done but if you don't know exactly what you're doing you could
    accidentally create a real problem! If you don't have any problems it
    might be safer to leave it :)



    aaa <leedshell.cais.com> wrote in message news:<bf7lpc02s07drn.newsguy.com>...
    > Thanks. After MKSYSB restore, the RAID configuration still their, but Pdisk
    > sequence mess up. User to I have Pdisk number from left to right 0-7 and on
    > back 8-15. After restore the pdisk number is here and their. I know how to
    > change "hdisk" number, but don't know how to change pdisk number?
    >
    > In article <46f5896d.0307171703.2844e2d1posting.google.com >, [email]bjstanhotmail.com[/email]
    > says...
    > >
    > >I think the 6215 Raid 5 configuration data is stored on a reserved
    > >area of the raid disks by the raid card so it should be ok - the
    > >restore won't touch that as long as you restore to internal disk.
    > >
    > >If you've restored from an up to date mksysb you probably won't even
    > >have to do anything. Do you have a record of what volume groups you
    > >had before you restored? Just make sure they're still there and
    > >accessable after the restore. If they're not you'll have to do some
    > >more digging around and maybe importvg them like Andre said.
    > >
    > >Cheers.
    > >
    > >
    > >"Andr? <a.porruncinifree.fr> wrote in message
    > >news:<3f16b2e4$0$12331$626a54cenews.free.fr>.. .
    > >> Hi,
    > >>
    > >> To my mind, you only need to import VGs from SSA Array after mksysb restore.
    > >>
    > >>
    > >> Bye
    > >> "aaa" <leedshell.cais.com> a écrit dans le message de
    > >> news:bf67ri0f1hdrn.newsguy.com...
    > >> > We have S70 with 6215 SSA adapter and SSA disk array. The SSA (16
    > >> > disks) current configured as 2 RIAD5 loops and 4 stand along disks. Due
    > >> > to rootvg(on internal hdisk0 NOT SSA) has problem we need restore from
    > >> > MKSYSB disk. My questions are:
    > >> >
    > >> > 1. what is procedures to handle SSA after MKSYSB tape restore? Any
    > >> > doents?
    > >> >
    > >> > 2. does RAID5 configuration will still keep or lose?
    > >> >
    > >> >
    > >> > Thanks.
    > >> >
    Ben Stanley Guest

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