I was wondering if anyone here has experience with HP MSA60 with P400 and P800 controller. How reliable are they for a 24x7 shop? TIA
Mag Gam wrote:> I was wondering if anyone here has experience with HP MSA60 with P400 > and P800 controller. How reliable are they for a 24x7 shop? >well, its not 5-nines stuff, there's all kinda single points of failure. you want 0.99999 kinda reliability, you need a fully redundant system with multipath, at every stage, like a fiberchannel SAN with dual HBA's on each system, dual switches, dual controllers on each storage array, etc, all components hotswappable, etc. of course, this all comes at siginficant expense, both in complexity and cost.
On Friday 21 August 2009, Mag Gam wrote:> I was wondering if anyone here has experience with HP MSA60 with P400 > and P800 controller. How reliable are they for a 24x7 shop?We have a few (p800). My opinion is that they're acceptable but not fast. We've had one flaky controller in 30 controllers in a year (but I think that one turned out to be a loose PCI-slot). On the plus side: + does raid6 + smartarray logical drives are a lot more flexible than most other raids + monitoring built on hpacucli, works, clear and consistent behaviour + just works on CentOS + no problem with large devices (for resonably new versions of fw/driver) and: - not terribly impressive speed wise - /dev/cciss/cXdY... can be problematic when software assumes /dev/XXX - hpacucli requires you to twist your brain sideways (syntax) All my experience with the p800 is from DL185g5 with 12x1T drives. We also have a few random p400's. They behave idenically to the p800 but slower. /Peter -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part. URL: <http://lists.centos.org/pipermail/centos/attachments/20090821/4326edaa/attachment-0003.sig>
>We have a few (p800). My opinion is that they're acceptable but not fast.Heard this a few times now, in the interest of getting something better next time, what have you found equally reliable but faster?>- hpacucli requires you to twist your brain sideways (syntax)Heh, that's no doubt:)