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тАО04-06-2011 05:34 AM
тАО04-06-2011 05:34 AM
http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c10
8973a801/?ciid=00089099cee021109099cee02110275d6e10RCRD
I have a ia64 hp server rx6600 and I am guessing I screwed up mirroring because I am unable to set an alternate boot path with setboot. Previously I only worked with RISC and 11.11 and 11.23 and want to make sure I have the right documentation. I used an old method and found some threads stating Itanium uses a new method. However, I am encountering broken links in the threads, so I apologize for reposting question.
# lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/disk/disk10_p2 -- Boot Disk
/dev/dsk/c0t0d0 -- Boot Disk
Boot: lvol1 on: /dev/disk/disk10_p2
/dev/dsk/c0t0d0
Root: lvol3 on: /dev/disk/disk10_p2
/dev/dsk/c0t0d0
Swap: lvol2 on: /dev/disk/disk10_p2
/dev/dsk/c0t0d0
Dump: lvol2 on: /dev/disk/disk10_p2, 0
I guess I can just break the mirror and start again? Thank you.
Solved! Go to Solution.
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тАО04-06-2011 05:42 AM
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тАО04-06-2011 05:44 AM
тАО04-06-2011 05:44 AM
Re: Mirroring root on Itanium
When_Good_Disks_Go_Bad_WP
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c01911837/c01911837.pdf
Hope this helps!
Regards
Torsten.
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тАО04-06-2011 05:48 AM
тАО04-06-2011 05:48 AM
Re: Mirroring root on Itanium
If you have the default SAS controller, you can have 2 pairs of hardware mirrored disks.
Hope this helps!
Regards
Torsten.
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тАО04-06-2011 09:58 AM
тАО04-06-2011 09:58 AM
Re: Mirroring root on Itanium
Running into an issue though, after entering this command
insf -e -H 0/4/2/0.0.0.0.0
For my disk, I do not see the see the partions under /dev/rdisk, I do see slices were created for the disk in /dev/rdsk. So when I try the next step, pvcreate I get an error that there is no such file or directory.
# pvcreate -B /dev/rdisk/disk11_p2
Couldn't stat physical volume "/dev/rdisk/disk11_p2":
pvcreate: Couldn't open physical volume "/dev/rdisk/disk11_p2":
No such file or directory
More info:
# ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
disk 0 0/4/2/0.0.0.0.0 sdisk CLAIMED DEVICE HP EH0146FARWD
/dev/dsk/c0t0d0 /dev/dsk/c0t0d0s2 /dev/rdsk/c0t0d0 /dev/rdsk/c0t0d0s2
/dev/dsk/c0t0d0s1 /dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s1 /dev/rdsk/c0t0d0s3
disk 1 0/4/2/0.0.0.1.0 sdisk CLAIMED DEVICE HP EH0146FARWD
/dev/dsk/c0t1d0 /dev/dsk/c0t1d0s2 /dev/rdsk/c0t1d0 /dev/rdsk/c0t1d0s2
/dev/dsk/c0t1d0s1 /dev/dsk/c0t1d0s3 /dev/rdsk/c0t1d0s1 /dev/rdsk/c0t1d0s3
# ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk10 /dev/rdsk/c0t1d0
/dev/rdisk/disk10_p1 /dev/rdsk/c0t1d0s1
/dev/rdisk/disk10_p2 /dev/rdsk/c0t1d0s2
/dev/rdisk/disk10_p3 /dev/rdsk/c0t1d0s3
/dev/rdisk/disk11 /dev/rdsk/c0t0d0
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тАО04-06-2011 10:08 AM
тАО04-06-2011 10:08 AM
Re: Mirroring root on Itanium
# insf -eC disk
and it works for me.
Regarding the hardware mirror:
When replacing a hardware mirrored disk, you just swap the disk - that's all.
Replacing a LVM mirrored SAS connected disk could be a real pain - a lot of commands are needed.
Hope this helps!
Regards
Torsten.
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тАО04-06-2011 10:08 AM
тАО04-06-2011 10:08 AM
Re: Mirroring root on Itanium
So, with your pvcreate do:
pvcreate -B /def/rdsk/c0t0d0s2
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тАО04-06-2011 10:25 AM
тАО04-06-2011 10:25 AM
Re: Mirroring root on Itanium
I guess the issue I run into a lot that I find these forum posts, but the links are always broken, or seem to be. Very frustrating. I am not at all familiar with sasmgr other than the man page and what info I found on the forum. Is the man page the place to look? Meaning does the man page have everything I need to know to do hardware mirroring?
I am right obviously right at the start of setting this server up and would like certainly like to pursue the best method. It sounds like hardware mirroring with this hardware is the way to go.
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тАО04-06-2011 10:46 AM
тАО04-06-2011 10:46 AM
Re: Mirroring root on Itanium
"HP 8 Internal Port SAS Controller and HP
Multi-Port Internal SAS Controller Support
Guide"
BTW, I think running insf against the legacy H/W path will only create legacy device files - never tried.
I would do hardware mirroring for the boot disks - be aware, data will be lost while creating the RAID.
Hope this helps!
Regards
Torsten.
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тАО04-06-2011 10:48 AM
тАО04-06-2011 10:48 AM
Re: Mirroring root on Itanium
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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No support by private messages. Please ask the forum!
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