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Intergrated Mirror rx 6600

 
Torsten.
Acclaimed Contributor

Re: Intergrated Mirror rx 6600

We are still using a "foreign" thread
;-o

See
http://docs.hp.com/en/5991-6002/ch01s05.html

quote
"When HP Integrity rx2660, rx3600 and rx6600 servers are shipped from HP, the SAS bays may be populated from 8 and working downwards. Placing a new SAS device into a lower bay number will cause the hardware paths to change after a new cold-install or recovery session. When you receive an rx2660, rx3600 or rx6600 system from HP, if you ever plan to add other SAS devices into the system, you should consider moving the SAS devices so they start in Bay 1 going upwards."

Hope this helps!
Regards
Torsten.

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Brian Beck HPUX
Occasional Visitor

Re: Intergrated Mirror rx 6600

Torsten-

Danke!

:)
Sameer_Nirmal
Honored Contributor

Re: Intergrated Mirror rx 6600

With the mention of partition in my last post, I meant the disk partitions created by idisk. You can see the disk partiton table using
# idisk /dev/rdsk/cxtydz
# idisk -p /dev/rdsk/cxtydz

HPUX partiton i.e s2 gets the remaining disk space allocation unless someone keep some space during ignite install. The partiton is used by LVM/VxVM for logical partitioning therein. Thus if there is no space left, you can't add the disk in an IR array for the reason mentioned before.

I think HP should document this for the IR migration to succeed done in the later stage?
Torsten.
Acclaimed Contributor

Re: Intergrated Mirror rx 6600

If you order a new system, consider to take the Smartarray P800, see

http://docs.hp.com/en/SM_SA3/SA_Support_Matrix.htm

Hope this helps!
Regards
Torsten.

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those who understand binary, and those who don't.

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ketenn57
Occasional Advisor

Re: Intergrated Mirror rx 6600

Could I use the process in the following post to help me resolve this issue (manually mirror to the unused disk, format the orginal primary disk, and then build the IM)

http://fixunix.com/hp-ux/144569-how-i-locate-swap-area.html

But for step 2 (partiotion discription file) I would make the HPUX partition 95% so space is left for the IM metadata
#vi /tmp/partitionfile
3
EFI 500MB
HPUX 95%
HPSP 400MB

Once the disk is mirrored, test that I can boot from it.

Then using the drvcfg utility I could format what was my primary drive (one with the 100& HPUX partition).

Then use the drvcfg to build the IM.

Any thoughts,

Thanks for everybody's help with this..



Torsten.
Acclaimed Contributor

Re: Intergrated Mirror rx 6600

I don't think so, because IMHO the secondary partition table is always at the end of the disk - regardless how many free space is in the "middle" of the disk.

I'm not sure if the config utility will allow you to create the integrated raid on a single (free) disk and add the second later, but I doubt.

Hope this helps!
Regards
Torsten.

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ketenn57
Occasional Advisor

Re: Intergrated Mirror rx 6600

Just to make sure I understand, you are saying that if I manually mirror the primary to the unused using the following partitions...

3
EFI 500MB
HPUX 95%
HPSP 400MB

The free disk space will be between the HPUX (partition 2) and HPSP (partition 3) and in order to create an integrated mirror (IM) the free disk space needs to be after the HPSP partition?

Also in regard to creating the IM, I would not be creating it with only 1 disk. Once I succesfully manually mirrored the primary to unused I was going to switch the secondary to the primary (so the primary now would have space to build the IM). Then format the secondary (this was the old primary) Then build the IM using primary as primary and secondary as the disk just formatted. Is this any cleared? Will this still not work?


Thanks again...
Torsten.
Acclaimed Contributor

Re: Intergrated Mirror rx 6600

I guess I don't understand your procedure.
You want to create the IR on a single disk and add the second later? Try it.

Regarding the disk layout see

http://en.wikipedia.org/wiki/GUID_Partition_Table

Hope this helps!
Regards
Torsten.

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