Re: Triple parity and beyond

On Fri, Nov 22, 2013 at 07:12:39PM +1100, Russell Coker wrote:

On Thu, 21 Nov 2013 18:30:49 Stan Hoeppner wrote:

quoted

I suggest that anyone in the future needing fast random write IOPS is
going to move those workloads to SSD, which is steadily increasing in
capacity.  And I suggest anyone building arrays with 10-20TB drives
isn't in need of fast random write IOPS.

Traditionally SCSI/SAS disks have tended to be a lot smaller than IDE/SATA 
disks.  Now Dell has just started offering 2TB SAS disks while the largest SATA 
disks that they sell (In Australia on PowerEdge T110 servers at least) are 
also 2TB.  Presumably RAID recovery time was one factor that made 
manufacturers not bother with making larger SCSI/SAS disks in the past.

Dell has been selling 4TB SAS disks for a long time already.. one year, or something like that.

-- Pasi