Hi,
We're going to configure a SAN with 6 Servers, 2 x MA8000 with 16 x
36.4 GB disks each and 2 x 8-ports Fiber Switch.
While trying to setup the best trade-off between loosing disks due to
distributed parity of RAID 3/5 and performance, I have at least the
following two options:
4 x RAID 3/5 of 5 Disks
2 x RAID 3/5 of 6 Disks
8 RAID Partitions for each Raidset
48 Units,
1 complete Raidset with 8 units for each server
Lost: 6 x 36.4 GB
Or
4 x RAID 3/5 of 8 Disks
8 RAID Partitions for each Raidset
32 Units, 5 units/server
2 servers with 6 units
Lost: 4 x 36.4 GB
In terms of performance, does anyone see a good reason to choose the
first option ?
Thanks
Wander
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Wanderley O. Mendes
Software Specialist wander_at_cptec.inpe.br
Phone: +55-12-560-8432 Fax: +55-12-560-8435
INPE/CPTEC - Cachoeira Paulista - Sao Paulo - Brazil
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Received on Mon Mar 12 2001 - 21:20:33 NZDT