Migrate to RAID ADG

[Vitaliy Shevorykin]

Hello,
We just got DL 380 with 12 drives cabinet and configured it to RAID 5. Recently we found out that there are a lot of expansion plans for this server. The question is is it possible to migrate to RAID ADG from RAID 5 or server need to be rebuild. The cabinet attached to MSA 20 Controller.
Thanks in advance

[Ameen Khan S_1]

hi

ADG is nothing but Raid 1+0 or it is called as raid 6. Yes you can do that however the migration will take 15mins for 1 gb. so it is better to rebuild the server. Before you rebuild make sure you have the verified backup.

Thanks

[Doug de Werd]

Yes you should be able to migrate it, but of course, make sure you have a backup! You also need to know exactly which Smart Controllers you have, as not all of them support ADG, and on some you have to purchase an upgrade option to enable it.

Check this matrix to see if yours support it:
http://h18000.www1.hp.com/products/servers/proliantstorage/arraycontrollers/feature.html

Here is the ADG web site, which has a lot of good information:
http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/adg/description.html

Here is some information you might find useful:

ftp://ftp.compaq.com/pub/products/servers/proliantstorage/arraycontrollers/Assessing_ADG_v_5_v_1+0.pdf

http://h200002.www2.hp.com/bc/docs/support/SupportManual/c00257511/c00257511.pdf

Check p. 2-5 of this doc for procedures:
http://h200002.www2.hp.com/bc/docs/support/UCR/SupportManual/TPM_283954-2/TPM_283954-2.pdf


Thanks,
Doug

[Vitaliy Shevorykin]

Thank you guys, I'll take it from there.

[Nguyen Anh Tien]

It is possible! no need to rebuild.
check my attached file for evidence.
You focus on page6,7 of this doc
http://h200002.www2.hp.com/bc/docs/support/SupportManual/c00257511/c00257511.

[sascha_8]

Hi,
we tried this on an dl580 G2 Windows2000 with an msa1000 direct attached.
We migrated from Raid 5 (14x72 GB) to RAID ADG. We lost a lot of performance, the troughput was about 200 Mb/s, this is to slow. After a migragtion to (14x144GB) and RAID 5 we have a troughput about 1100 Mb/s.