On 24 janv. 2010, at 08:36, Erik Trimble wrote: > These days, I've switched to 2.5" SATA laptop drives for large-storage > requirements. > They're going to cost more $/GB than 3.5" drives, but they're still not > horrible ($100 for a 500GB/7200rpm Seagate Momentus). They're also easier to > cram large numbers of them in smaller spaces, so it's easier to get larger > number of spindles in the same case. Not to mention being lower-power than > equivalent 3.5" drives.
Ditto. After doing a quick check of the power consumption of various drives it's clear that 2.5" drives are significantly less power-hungry, and with 500GB drives it's entirely reasonable for many workloads as far as capacity requirements go. Even with 5400RPM mechanisms, it's more than enough for most home server IOPS requirements, especially if you throw a few more axes at the server. > My sole problem is finding well-constructed high-density 2.5" hot-swap > bay/chassis setups. > If anyone has a good recommendation for a 1U or 2U JBOD chassis for 2.5" > drives, that would really be helpful. Not cheap, but I've used the HP MSA70 a while ago and was quite happy with the results (<http://h18006.www1.hp.com/storage/disk_storage/msa_diskarrays/drive_enclosures/msa70/specs.html>) And Dell has recently joined the crowd with the MD1120. I've used the MD1000 enclosures with 3.5" drives in many installations. (<http://www.dell.com/us/en/business/storage/storage_powervault_md1120/pd.aspx?refid=storage_powervault_md1120&s=bsd&cs=04>) Although both of those models talk about supporting Nearline SATA so I don't know if they'll take a regular off the shelf SATA laptop drive. Outside of that range, I've recently been looking at rebuilding my home storage server with a full-sized tower (something like: <http://www.xcase.co.uk/PC-A17A-Aluminium-Silver-Case-No-PSU-p/lili-a17a.htm>) and filling in front facing bays with multiple SuperMicro 8in2 chassis (<http://www.supermicro.com/products/accessories/mobilerack/CSE-M28E2.cfm>) which have include an 2x expander and are can be cascaded internally, so you should be able to add modules as capacity requirement grow. Cheers, Erik _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
