Hitachi GST lays 4TB Easter egg
Hitachi GST has laid a nice Easter egg: a 4TB enterprise disk drive and a first at this capacity level. It's HGST's second 4TB product. This 3.5-inch drive technology first surfaced in September when Hitachi GST launched its 4TB G-Drive external Thunderbolt product. Now it has updated its Ultrastar line, jumping from the 3TB …
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imagine the rebuilding time
the larger .. the longer the drive rebuilding using traditional RAID type array....we seriously need a new breakthrough ....
Re: imagine the rebuilding time
Don't use RAID 5!
Use RAID 10. You don't even notice it when it's rebuilding.
Re: imagine the rebuilding time
Well at that size you can consider that. After all you do need nearly twice as many drives as with RAID5 or RAID"6". (Unless you have only tiny arrays)
They've had an internal 4tb drive out a while (albeit not enterprise) in the form of a 5400RPM drive.
Way Cool!
Realistically 20 2U servers in a rack.
12 x 4TB per server = 48TB.
20 x 48TB = 960 TB per rack.
While its a little shy of 1PB, Its still a massive amount of disk!
Re: Way Cool!
You can cram 70 LFF disks in 5U albeit in slideout drawers rather than all seen from the front, 8 per rack, just over 2PB.
Don't use RAID1 or RAID5
Use ZFS with mirroring :) - kill bitrot for good
Re: Don't use RAID1 or RAID5
or one of the RAID-Z or RAID-Z2 layouts. But definitely make use of the ZFS block level checksums to make sure your data stays intact and withstands most minor read errors.
WD at 2TB
for the enterprise at least, was looking at them this weekend since I have several of their RE4 2TB disks for my home servers.
Didn't WD just buy Hitachi anyways ? or in the process of buying?
Hitachi GST lays 4TB Easter egg
Did it hurt ? Does this constitute cruelty to animals ?...
In any event, kudos to the Hitachi engineers !...
Henri
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