Disk Performance measurement for RAID and Software Raid
15 Apr 1999
T. Ichihara (RIKEN)
Preliminary
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Hardware
SUN Enterprise 450 : Solaris 2.6
CPU: Dual Ultra2 sparc at 400MHz
Memory: 1280 MB Main Memory
PCI Dual ultra-wide SCSI controller (diff.) (Ext. Raid connection)
PCI Dual ultra-wide SCSI controller (single.) (Internal disks)
External Raid System (raid0+1,raid4 or raid5)
Controller: CMD CRD-5440-001/002 Ultra SCSI Raid Controller
Disk sub system: IBM 3.5" 36GB Disk driver 10 unit (1 for Hot spare)
Host I/F: Ultra-Wide SCSI (differential)
Product Name: IAI SNX96000E
Testing method
Fortran unformatted IO write, read
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Bare Disk (Seagate 18GB ST318275LC internal, ultra-wide SCSI)
File Write rate = 14.3 MB/S ( 200 MB 14. sec.)
File Write rate = 12.58 MB/S ( 2000 MB 159. sec.)
File Read rate = 20.0 MB/S ( 200 MB 10. sec.)
File Read rate = 19.05 MB/S ( 2000 MB 105. sec.)
Hardware RAID4 288GB (CMD CRD-5440-001/002 Ultra SCSI Raid Controller
3.5" 36GB IBM HD x 10 unit 2 SCSI-Channel
Block-size 128 KB, Product IAI SNX96000E)
File Write rate = 13.3 MB/S ( 200 MB 15. sec.)
File Write rate = 12.90 MB/S ( 2000 MB 155. sec.)
File Read rate = 13.33 MB/S ( 200 MB 15. sec.)
File Read rate = 14.18 MB/S ( 2000 MB 141. sec.)
Hardware RAID5 288GB (CMD CRD-5440-001/002 Ultra SCSI Raid Controller
3.5" 36GB IBM HD x 10 unit 2 SCSI-Channel
Block-size 128 KB : Product IAI SNX96000E)
File Write rate = 14.3 MB/S ( 200 MB 14. sec.)
File Write rate = 12.99 MB/S ( 2000 MB 154. sec.)
File Read rate = 16.7 MB/S ( 200 MB 12. sec.)
File Read rate = 16.39 MB/S ( 2000 MB 122. sec.)
Software RAID 0+1 (Solaris2.6 Disksuite)
File Write rate = 11.1 MB/S ( 200 MB 18. sec.)
File Write rate = 10.10 MB/S ( 2000 MB 198. sec.)
File Read rate = 25.00 MB/S ( 200 MB 8. sec.)
File Read rate = 23.26 MB/S ( 2000 MB 86. sec.)
Software RAID 5 (Solaris2.6 Disksuite)
File Write rate = 1.9 MB/S ( 200 MB 102. sec.)
File Write rate = 1.80 MB/S ( 2000 MB 1111. sec.)
File Read rate = 28.57 MB/S ( 200 MB 7. sec.)
File Read rate = 27.78 MB/S ( 2000 MB 72. sec.)
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20 Apr 1999 Takashi Ichihara ([email protected])