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

[aaa]

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
documents?

2. does RAID5 configuration will still keep or lose?


Thanks.

[André]

Hi,

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


Bye
"aaa" <leed@shell.cais.com> a écrit dans le message de
news:bf67ri0f1h@drn.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
> documents?
>
> 2. does RAID5 configuration will still keep or lose?
>
>
> Thanks.
>

[aaa]

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.0307171703.2844e2d1@posting.google.com >, [email]bjstan@hotmail.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.porruncini@free.fr> wrote in message
>news:<3f16b2e4$0$12331$626a54ce@news.free.fr>.. .

>> Hi,
>>
>> To my mind, you only need to import VGs from SSA Array after mksysb restore.
>>
>>
>> Bye
>> "aaa" <leed@shell.cais.com> a écrit dans le message de
>> news:bf67ri0f1h@drn.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
>> > documents?
>> >
>> > 2. does RAID5 configuration will still keep or lose?
>> >
>> >
>> > Thanks.
>> >

[Ben Stanley]

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 <leed@shell.cais.com> wrote in message news:<bf7lpc02s07@drn.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.0307171703.2844e2d1@posting.google.com >, [email]bjstan@hotmail.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.porruncini@free.fr> wrote in message
> >news:<3f16b2e4$0$12331$626a54ce@news.free.fr>.. .

> >> Hi,
> >>
> >> To my mind, you only need to import VGs from SSA Array after mksysb restore.
> >>
> >>
> >> Bye
> >> "aaa" <leed@shell.cais.com> a écrit dans le message de
> >> news:bf67ri0f1h@drn.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
> >> > documents?
> >> >
> >> > 2. does RAID5 configuration will still keep or lose?
> >> >
> >> >
> >> > Thanks.
> >> >