If you're just going to use your SAN for general storage, why not just get a cheaper drive array, or even JBOD? The cost of SAN storage is MUCH higher than general storage warrants.
>>> John Aldrich <jaldr...@blueridgecarpet.com> 4/8/2011 9:55 AM >>> Yeah.... I was keeping that in mind... Very good points to consider, too. :-) Mostly just going to be storing stuff that is primarily used for reference and things like that. At least that's how we're using our file server now. Very little "writing" going on, but a lot of "reading" of files. -----Original Message----- From: Paul Hutchings [mailto:paul.hutchi...@mira.co.uk] Sent: Friday, April 08, 2011 12:47 PM To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 If you're using Exchange 2010 then you're still not going to be pushing a lot of IOPS. It could be more of an issue if you had a SQL or intensive ERP app etc. It isn't black and white IMO. Buy a SAN like an Equallogic and all your disks are in one big RAID set. Buy a dumber SAN like an MD3000i and you can have as few or as many RAID sets as your physical disks support, buy a P4000 and your nodes give you redundancy as does your RAID level, so you see what I mean, it isn't a one size fits all thing really. -----Original Message----- From: John Aldrich [mailto:jaldr...@blueridgecarpet.com] Sent: 08 April 2011 17:42 To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 Well, I don't think we'll have a whole lot of IOPS, unless / until I bring email in-house, in which case I might just have it on it's own dedicated server with plenty of disk space on-board and back that up to the SAN. :-) -----Original Message----- From: Paul Hutchings [mailto:paul.hutchi...@mira.co.uk] Sent: Friday, April 08, 2011 12:24 PM To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 You need to weigh up price vs. performance needs vs. risk tolerance. RAID6 is fantastic for data reliability, but if your workload is write intensive you're pretty screwed if you go with RAID6. -----Original Message----- From: John Aldrich [mailto:jaldr...@blueridgecarpet.com] Sent: 08 April 2011 17:13 To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 Would you prefer RAID6 or RAID10? Practically, what would you accept -- RAID 5, RAID 6, what? Just trying to think ahead for when I have a chance to order a SAN. -----Original Message----- From: John Hornbuckle [mailto:john.hornbuc...@taylor.k12.fl.us] Sent: Friday, April 08, 2011 12:06 PM To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 Our new servers are ordered that way. -----Original Message----- From: Steven M. Caesare [mailto:scaes...@caesare.com] Sent: Thursday, April 07, 2011 3:16 PM To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 IF your controller supports it, ADG (RAID6) is even better than RAID5 + spare, IMO. -sc -----Original Message----- From: John Hornbuckle [mailto:john.hornbuc...@taylor.k12.fl.us] Sent: Thursday, April 07, 2011 2:43 PM To: NT System Admin Issues Subject: RE: Opinion on rebuilding Raid 5 I've gotten so paranoid about this kind of situation happening here that I have two hotspares in my servers. John Hornbuckle MIS Department Taylor County School District www.taylor.k12.fl.us -----Original Message----- From: John Cook [mailto:john.c...@pfsf.org] Sent: Thursday, April 07, 2011 1:03 PM To: NT System Admin Issues Subject: Re: Opinion on rebuilding Raid 5 No hot spare. John W. Cook Systems Administrator Partnership for Strong Families ----- Original Message ----- From: Steven M. Caesare <scaes...@caesare.com> To: NT System Admin Issues <ntsysadmin@lyris.sunbelt-software.com> Sent: Thu Apr 07 13:01:32 2011 Subject: RE: Opinion on rebuilding Raid 5 If you don't have a hot spare then NO! If you do have a hot spare, then it should have kicked in when the previous drive failed, and you would currently not be seeing any rebuilds with the drive you already replaced... I'd recommend against it. -sc > -----Original Message----- > From: John Cook [mailto:john.c...@pfsf.org] > Sent: Thursday, April 07, 2011 12:58 PM > To: NT System Admin Issues > Subject: Opinion on rebuilding Raid 5 > > So I have a Dell 2850 with 6 drives in raid 5 and one completely failed and > another is predicted to according to the OpenManage software. I replaced > the failed one and it's rebuilding but I was wondering if anyone has an > opinion on whether or not I can replace the suspect drive before the other > one completes it's rebuild as this is a remote office and I really don't want to > drive back out here just to swap a drive out. > John W. 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