Re: [Veritas-vx] Vxdg issue after Storage Problem

2008-05-11 Thread Robinson, Greg
Hi Sigmund,

I would try initialising the disk group from scratch again, but don't
mkfs the filesystem.  Chances are that the dg info has gone west, but
the filesystem maybe intact.

Also, if the dg has gone, then it won't let you create the dg with the
same name.  Then a restore might be needed.

Good luck,

Greg.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sigmund
Brandstaetter
Sent: Sunday, 11 May 2008 4:37 AM
To: veritas-vx@mailman.eng.auburn.edu
Subject: [Veritas-vx] Vxdg issue after Storage Problem
Importance: High

Hi all,

After a serious Storage Problem (one Symmetrix Box was offline after a
power
issue) we had vx issues on several Veritas Clusters (5.0SP1)

We managed to get them all online again but on one system, 2 diskgroups
are
no longer in the configuration obviously...

Has anybody expirienced something similar and has anybody got an idea
about
how to get to work with such a situation..

output:

[EMAIL PROTECTED]:~# vxdisk -o alldgs list
DEVICE   TYPEDISK GROUPSTATUS
c0t0d0s2 auto:none   --online invalid
c0t1d0s2 auto:none   --online invalid
emcpower0s2  auto:cdsdisk-(aaadata_dg) online
emcpower1s2  auto:cdsdisk-(xxxdata_dg) online
emcpower2s2  auto:cdsdisk-(xxxdata_dg) online
emcpower3s2  auto:cdsdisk-(aaaredo_dg) online
emcpower4s2  auto:cdsdisk-(rch_dg) online
emcpower5s2  auto:cdsdisk-(dmin_dg) online
emcpower6s2  auto:cdsdisk-(xxxarch_dg) online
emcpower7s2  auto:cdsdisk--online invalid
emcpower8s2  auto:cdsdisk--online invalid
emcpower9s2  auto:cdsdisk-(aaadata_dg) online

The missing groups would be

Xxxredo_dg and xxxadmin_dg

EMC says that the disks are all right, however I have not yet seen such
a
behavior.

VXVM 5.0 MP1
VXCS 5.0 MP1

To me it looks like the config was somehow corrupted and these 2 disks
do no
longer appear under VXVM control.

Thanks for any hints

Cheers
Sigi


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Re: [Veritas-vx] Vxdg issue after Storage Problem

2008-05-11 Thread Marujio
Hi Sigmund,

since you know which disk did belong to which disk group and you can 
easily restore data from a backup, you can try the following:

supposing the disk are:
emcpower7s2 auto:cdsdisk - - online invalid <--- belonging to xxxredo_dg
emcpower8s2 auto:cdsdisk - - online invalid <--- belonging to xxxadmin_dg

initialize the disks:
# vxdisk -f init emcpower7s2
# vxdisk -f init emcpower8s2

then, from the old vxprint output construct all the old objects such as 
subdisks, plex and volumes

for diskgroups:
# vxdg init xxxredo_dg OldXxxredoDiskName=emcpower7s2
# vxdg init xxxadmin_dg OldXxxadminDiskName=emcpower8s2

for subdisks:
# vxmake -g xxxredo_dg sd OldXxxredoDiskName-01 
OldXxxredoDiskName,Offset,Lenght
# vxmake -g xxxadmin_dg sd OldXxxadminDiskName-01 
OldXxxadminDiskName,Offset,Lenght

for plexes:
# vxmake -g xxxredo_dg plex OldXxxredoPlexName sd=OldXxxredoDiskName-01
# vxmake -g xxxadmin_dg plex OldXxxadminPlexName sd=OldXxxadminDiskName-01

for volumes:
# vxmake -g xxxredo_dg -U fsgen vol OldXxxredoVolName 
plex=OldXxxredoPlexName
# vxmake -g xxxadmin_dg -U fsgen vol OldXxxadminVolName 
plex=OldXxxadminPlexName
# vxvol -g xxxredo init active OldXxxredoVolName

for filesystems:
# fstyp -v /dev/vx/dsk/xxxredo_dg/OldXxxredoVolName
# fsck -F vxfs -y /dev/vx/dsk/xxxredo_dg/OldXxxredoVolName
# fstyp -v /dev/vx/dsk/xxxredo_dg/OldXxxredoVolName
# fsck -F vxfs -y /dev/vx/dsk/xxxredo_dg/OldXxxredoVolName


Hope this helps

Marujio

> Hi,
>
> 1)yes, we do
> 2)we know which disks did belong to which diskgroups
> 3)the disks are visible to the system
> 4)no, these disks are part of an srdf group and they are not imported 
> on any other server
> 5)no scsi errors, we checked
>
> The status is that we could restore the vxvm config but it seems that 
> during the process of validating and destaging data, these
> Disks where somehow corrupted (or the header at least)
>
> We have a case oüen with Veritas but so far they could not do much.
>
> In any case, luckily these 2 dg’s contain data that can be easily 
> restored from a backup.
>
> Cheers and thanks for suggestions
>
>
> On 5/11/08 7:34 PM, "capri dsouza" <[EMAIL PROTECTED]> wrote:
>
> Hi Sigmund,
>
> 1)Do you have an old "vxprint -htg dg" of the 2 disk groups
> 2)If you do have then you need to check the disks that belong to
> these diskgroups
> 3)Check if you can see these disks in the format
> 4)Have you checked if these disks are imported on any other server
> 5)Check the /var/adm/messages for any scsi related errrors or
> /etc/vx/dmpevents.log (i think )
>
> Let me know if this helps
>
>
> Regards
> Capri
> On Sun, May 11, 2008 at 12:36 AM, Sigmund Brandstaetter
> <[EMAIL PROTECTED]> wrote:
>
> Hi all,
>
> After a serious Storage Problem (one Symmetrix Box was offline
> after a power
> issue) we had vx issues on several Veritas Clusters (5.0SP1)
>
> We managed to get them all online again but on one system, 2
> diskgroups are
> no longer in the configuration obviously...
>
> Has anybody expirienced something similar and has anybody got
> an idea about
> how to get to work with such a situation..
>
> output:
>
> [EMAIL PROTECTED]:~# vxdisk -o alldgs list
> DEVICE TYPE DISK GROUP STATUS
> c0t0d0s2 auto:none - - online invalid
> c0t1d0s2 auto:none - - online invalid
> emcpower0s2 auto:cdsdisk - (aaadata_dg) online
> emcpower1s2 auto:cdsdisk - (xxxdata_dg) online
> emcpower2s2 auto:cdsdisk - (xxxdata_dg) online
> emcpower3s2 auto:cdsdisk - (aaaredo_dg) online
> emcpower4s2 auto:cdsdisk - (rch_dg) online
> emcpower5s2 auto:cdsdisk - (dmin_dg) online
> emcpower6s2 auto:cdsdisk - (xxxarch_dg) online
> emcpower7s2 auto:cdsdisk - - online invalid
> emcpower8s2 auto:cdsdisk - - online invalid
> emcpower9s2 auto:cdsdisk - (aaadata_dg) online
>
> The missing groups would be
>
> Xxxredo_dg and xxxadmin_dg
>
> EMC says that the disks are all right, however I have not yet
> seen such a
> behavior.
>
> VXVM 5.0 MP1
> VXCS 5.0 MP1
>
> To me it looks like the config was somehow corrupted and these
> 2 disks do no
> longer appear under VXVM control.
>
> Thanks for any hints
>
> Cheers
> Sigi
>
>
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>
>
> 
>
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Re: [Veritas-vx] Vxdg issue after Storage Problem

2008-05-11 Thread Sigmund Brandstaetter
Hi,

1)yes, we do
2)we know which disks did belong to which diskgroups
3)the disks are visible to the system
4)no, these disks are part of an srdf group and they are not imported on any
other server
5)no scsi errors, we checked

The status is that we could restore the vxvm config but it seems that during
the process of validating and destaging data, these
Disks where somehow corrupted (or the header at least)

We have a case oüen with Veritas but so far they could not do much.

In any case, luckily these 2 dg¹s contain data that can be easily restored
from a backup.

Cheers and thanks for suggestions


On 5/11/08 7:34 PM, "capri dsouza" <[EMAIL PROTECTED]> wrote:

> Hi Sigmund,
> 
> 1)Do you have an old "vxprint -htg dg" of the 2 disk groups
> 2)If you do have then you need to check the disks that belong to these
> diskgroups
> 3)Check if you can see these disks in the format
> 4)Have you checked if these disks are imported on any other server
> 5)Check the /var/adm/messages for any scsi related errrors or
> /etc/vx/dmpevents.log (i think )
> 
> Let me know if this helps
> 
> 
> Regards
> Capri
> On Sun, May 11, 2008 at 12:36 AM, Sigmund Brandstaetter <[EMAIL PROTECTED]>
> wrote:
>> Hi all,
>> 
>> After a serious Storage Problem (one Symmetrix Box was offline after a power
>> issue) we had vx issues on several Veritas Clusters (5.0SP1)
>> 
>> We managed to get them all online again but on one system, 2 diskgroups are
>> no longer in the configuration obviously...
>> 
>> Has anybody expirienced something similar and has anybody got an idea about
>> how to get to work with such a situation..
>> 
>> output:
>> 
>> [EMAIL PROTECTED]:~# vxdisk -o alldgs list
>> DEVICE   TYPEDISK GROUPSTATUS
>> c0t0d0s2 auto:none   --online invalid
>> c0t1d0s2 auto:none   --online invalid
>> emcpower0s2  auto:cdsdisk-(aaadata_dg) online
>> emcpower1s2  auto:cdsdisk-(xxxdata_dg) online
>> emcpower2s2  auto:cdsdisk-(xxxdata_dg) online
>> emcpower3s2  auto:cdsdisk-(aaaredo_dg) online
>> emcpower4s2  auto:cdsdisk-(rch_dg) online
>> emcpower5s2  auto:cdsdisk-(dmin_dg) online
>> emcpower6s2  auto:cdsdisk-(xxxarch_dg) online
>> emcpower7s2  auto:cdsdisk--online invalid
>> emcpower8s2  auto:cdsdisk--online invalid
>> emcpower9s2  auto:cdsdisk-(aaadata_dg) online
>> 
>> The missing groups would be
>> 
>> Xxxredo_dg and xxxadmin_dg
>> 
>> EMC says that the disks are all right, however I have not yet seen such a
>> behavior.
>> 
>> VXVM 5.0 MP1
>> VXCS 5.0 MP1
>> 
>> To me it looks like the config was somehow corrupted and these 2 disks do no
>> longer appear under VXVM control.
>> 
>> Thanks for any hints
>> 
>> Cheers
>> Sigi
>> 
>> 
>> ___
>> Veritas-vx maillist  -  Veritas-vx@mailman.eng.auburn.edu
>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-vx
>> 
>> 

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Re: [Veritas-vx] Vxdg issue after Storage Problem

2008-05-11 Thread capri dsouza
Hi Sigmund,

1)Do you have an old "vxprint -htg dg" of the 2 disk groups
2)If you do have then you need to check the disks that belong to these
diskgroups
3)Check if you can see these disks in the format
4)Have you checked if these disks are imported on any other server
5)Check the /var/adm/messages for any scsi related errrors or
/etc/vx/dmpevents.log (i think )

Let me know if this helps


Regards
Capri
On Sun, May 11, 2008 at 12:36 AM, Sigmund Brandstaetter <[EMAIL PROTECTED]>
wrote:

> Hi all,
>
> After a serious Storage Problem (one Symmetrix Box was offline after a
> power
> issue) we had vx issues on several Veritas Clusters (5.0SP1)
>
> We managed to get them all online again but on one system, 2 diskgroups
> are
> no longer in the configuration obviously...
>
> Has anybody expirienced something similar and has anybody got an idea
> about
> how to get to work with such a situation..
>
> output:
>
> [EMAIL PROTECTED]:~# vxdisk -o alldgs list
> DEVICE   TYPEDISK GROUPSTATUS
> c0t0d0s2 auto:none   --online invalid
> c0t1d0s2 auto:none   --online invalid
> emcpower0s2  auto:cdsdisk-(aaadata_dg) online
> emcpower1s2  auto:cdsdisk-(xxxdata_dg) online
> emcpower2s2  auto:cdsdisk-(xxxdata_dg) online
> emcpower3s2  auto:cdsdisk-(aaaredo_dg) online
> emcpower4s2  auto:cdsdisk-(rch_dg) online
> emcpower5s2  auto:cdsdisk-(dmin_dg) online
> emcpower6s2  auto:cdsdisk-(xxxarch_dg) online
> emcpower7s2  auto:cdsdisk--online invalid
> emcpower8s2  auto:cdsdisk--online invalid
> emcpower9s2  auto:cdsdisk-(aaadata_dg) online
>
> The missing groups would be
>
> Xxxredo_dg and xxxadmin_dg
>
> EMC says that the disks are all right, however I have not yet seen such a
> behavior.
>
> VXVM 5.0 MP1
> VXCS 5.0 MP1
>
> To me it looks like the config was somehow corrupted and these 2 disks do
> no
> longer appear under VXVM control.
>
> Thanks for any hints
>
> Cheers
> Sigi
>
>
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[Veritas-vx] Vxdg issue after Storage Problem

2008-05-10 Thread Sigmund Brandstaetter
Hi all,

After a serious Storage Problem (one Symmetrix Box was offline after a power
issue) we had vx issues on several Veritas Clusters (5.0SP1)

We managed to get them all online again but on one system, 2 diskgroups are
no longer in the configuration obviously...

Has anybody expirienced something similar and has anybody got an idea about
how to get to work with such a situation..

output:

[EMAIL PROTECTED]:~# vxdisk -o alldgs list
DEVICE   TYPEDISK GROUPSTATUS
c0t0d0s2 auto:none   --online invalid
c0t1d0s2 auto:none   --online invalid
emcpower0s2  auto:cdsdisk-(aaadata_dg) online
emcpower1s2  auto:cdsdisk-(xxxdata_dg) online
emcpower2s2  auto:cdsdisk-(xxxdata_dg) online
emcpower3s2  auto:cdsdisk-(aaaredo_dg) online
emcpower4s2  auto:cdsdisk-(rch_dg) online
emcpower5s2  auto:cdsdisk-(dmin_dg) online
emcpower6s2  auto:cdsdisk-(xxxarch_dg) online
emcpower7s2  auto:cdsdisk--online invalid
emcpower8s2  auto:cdsdisk--online invalid
emcpower9s2  auto:cdsdisk-(aaadata_dg) online

The missing groups would be

Xxxredo_dg and xxxadmin_dg

EMC says that the disks are all right, however I have not yet seen such a
behavior.

VXVM 5.0 MP1
VXCS 5.0 MP1

To me it looks like the config was somehow corrupted and these 2 disks do no
longer appear under VXVM control.

Thanks for any hints

Cheers
Sigi


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