[CentOS] using CentOS as an iSCSI server?
John R Pierce
pierce at hogranch.com
Wed Oct 21 15:43:38 UTC 2009
> Say, I had 4 devices with 500 GB drives exported using iSCSI. If a
> single larger server
> took those four iSCSI export drives, and created one md RAID 5 device,
> could a single
> server be turned off, and just degrade the array until it was either
> replaced entirely
> or brought back online?
>
how long would it take to replicate and rebuild a volume across the LAN
via iscsi? if each of those slices was 500GB, you'd be reading 3 x
500GB and writing 500GB before the drive was resynched. note, a single
drive on each storage controller in this scenario won't even achieve
1gigE speeds.
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