Choosing the Right Disk Technology in a High Availability Environment DRAFT Version 2.0, August 1996

Table K: Cost & Footprint Comparison for 64 GB of Protected Disk Space
Config A Config B Config C Config D Config E
DRAFT -- Revision 2.0
August 22, 1996Page 47
Notes:
Config A: C3553RZ 2 GB JBODs in 8 GB tray configuration mirrored for
128 GB total disk space (64 GB protected)
Config B: A3232A HADA arrays in RAID 5 mode for 80 GB total disk space
(64 GB protected) configured with 2 Storage Processors and 32
MB cache; 20 mechanisms per array
Config C: A3232A HADA arrays in RAID 1 mode for 128 GB total disk
space (64 GB protected) configured with 2 Storage Processors
and 32 MB cache; 16 mechanisms per array
Config D: C2440JZ SCSI DAs in RAID 5 mode for 80 GB total disk space
(64 GB protected); 5 mechanisms per array
Config E: C2439JZ+C2431A SCSI DAs in Independent mode mirrored for
128 GB total disk space (64 GB protected); 4 mechanisms per
array
The exact configurations used are shown below. Prices are from the August,
1995 price list and are subject to change.
Table L: Detail of Configurations Compared in Table K
Configuration Qty Product # Price each Total Price
A
Mirrored
JBODs
16 C3553RZ 10,090 161,440
2 A1897A 2,450 4,900
8 28696A 1,295 10,360
176,700
B
RAID 5
HADA Arrays
2 A3232A 15,000
2 #315 35,020
2 #421 2,000
2 #532 10,160 124,360
2 28696A 1,295 2,590
1 A1897A 2,450 2,450
129,400