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тАО05-02-2006 01:34 AM
тАО05-02-2006 01:34 AM
MSA20 >2TB Volumes?
At the moment I'd be looking at creating 3 volumes (2TB, 1.5TB, 1.5TB) which is a big waste of storage as I'd want RAID5/ADG.
Any one got any ideas of whether SA controllers can go higher than 2TB volumes or a sensible cost effective workaround....?
Ta
J
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тАО05-02-2006 02:23 AM
тАО05-02-2006 02:23 AM
Re: MSA20 >2TB Volumes?
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тАО05-02-2006 02:30 AM
тАО05-02-2006 02:30 AM
Re: MSA20 >2TB Volumes?
I don't thik that 2TB limit applies to RAID5 though, but only to ADG:
"Advanced Data Guarding (RAID ADG) offers breakthrough level of fault protection of RAID volumes up to 2TB and a total of 28 disk drive in a RAID volume"
Bear in mind that:
a) the MSA20 has its own controller which maintains RAID operations (unless you connect it to the MSA1500)
b) ADG brings huge performance overhead, which could be especially painful when coupled with SATA drives (think rather about RAID 5 + hot spare)
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тАО05-02-2006 02:34 AM
тАО05-02-2006 02:34 AM
Re: MSA20 >2TB Volumes?
1. Create a RAID5 or ADG array using all 12 500GB disks giving 5TB usable storage.
2. Then create several logical drives on that one array <2TB each.
3. In the O/S create dynamic GPT volumes and span them together.
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тАО05-02-2006 02:41 AM
тАО05-02-2006 02:41 AM
Re: MSA20 >2TB Volumes?
It's going to be a DL360 G4p, with either a SA642 or SA6402 hooked up to the MSA20 with 12 x 500GB.
Based on the info on replies, I'll be best going with;
1. 11 x RAID 5 + 1 x Hotspare
2. Create 2TB, 1.5TB & 1.5TB logical drives
3. Configure the 3 disks in Windows as dynamic & GPT type and then span them together to get roughly 5TB as one volume.
J
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тАО05-09-2006 11:14 PM
тАО05-09-2006 11:14 PM