If you don't have seriously high iops needs, I doubt you need raid 10. Jmho.
If I thought it was a site I couldn't get to quickly, I'd consider raid 6 with 2 hot spares. Call me crazy... On Sep 20, 2016 4:10 PM, "J- P" <[email protected]> wrote: > I was thinking a big raid 10, (8x500= 2tb) but no hot spare is a > showstopper , as they do not have any real IT in house, , it does stink > that I will lose / sacrifice 2 bays for one hot spare. > > > Decided on RAID 10 (6x500gb ) for a total of 1.5TB and the hot spare > > > > Jean-Paul Natola > > > > ------------------------------ > *From:* [email protected] <[email protected]> > on behalf of Jonathan Raper <[email protected]> > *Sent:* Tuesday, September 20, 2016 12:27 PM > *To:* [email protected] > *Subject:* [NTSysADM] RE: raid 5? in 2016 > > > Yeah, I’ve run into that as well (no hot spare) and I want to smack > whoever did the design/config. > > > > As for your question, “aside from a losing some space wouldn't a raid 6 > and hot spare make MUCH more sense?” > > > > Well, the answer is, “it depends” (probably, but I like throwing that out > there). > > > > J > > > > This site has been around for YEARS, and provides a good overview of the > differences (pros/cons/uses) for different RAID configurations: > > > > http://www.acnc.com/raidedu/5 > > > > http://www.acnc.com/raidedu/6 > > > > I used it about 7 or 8 years ago to help me decide whether to go with RAID > 10 or 0+1 on an Oracle DB configuration. (and no, I don’t remember which > option I chose, or why). > > > > Jonathan > > > > *From:* [email protected] [mailto:listsadmin@lists. > myitforum.com] *On Behalf Of *Doug Hobbs > *Sent:* Monday, September 19, 2016 3:39 AM > *To:* [email protected] > *Subject:* [NTSysADM] RE: raid 5? in 2016 > > > > “but still raid 5? and no hot spare?“ I’ve seen this more than once, > There are a lot of people out there that were taught old school and that > RAID 5 is the de-facto standard RAID setup so they stick with it for years > and years! > > > > > > *From:* [email protected] [mailto:listsadmin@lists. > myitforum.com <[email protected]>] *On Behalf Of *J- P > *Sent:* 16 September 2016 14:11 > *To:* NT <[email protected]> > *Subject:* [NTSysADM] raid 5? in 2016 > > > > So I inherited this server , (sitting on site since February) low and > behold when I fire it up it turns out that whoever set it up used all 8 > discs in a raid 5 (granted they are only 500gb enterprise ssd's ) but still > raid 5? and no hot spare? > > > > I'm trying to figure what the purpose of this server is/was, but aside > from a losing some space wouldn't a raid 6 and hot spare make MUCH more > sense? > > > > I'd like to move some of their VMs to it, as it is a brand spanking new > r730 with 96gb of ram > > > > > > > > > > > > > The University of Derby has a published policy regarding email and > reserves the right to monitor email traffic. > If you believe this was sent to you in error, please reply to the sender > and let them know. > > Key University contacts: http://www.derby.ac.uk/its/contacts/ > NOTE: This message and any attachments is intended solely for the use of > the individual or entity to which it is addressed and may contain > information that is non-public, proprietary, legally privileged, > confidential, and/or exempt from disclosure. If you are not the intended > recipient, you are hereby notified that any use, dissemination, > distribution, or copying of this communication is strictly prohibited. If > you have received this communication in error, please notify the original > sender immediately by telephone or return email and destroy or delete this > message along with any attachments immediately. >
