Dell PowerVault 220S Handmatig - Pagina 37
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A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS
SCSI
Wide Ultra320
Technology
Host Bus
64-bit / 66 MHz
Interface
PCI 2.2 (HBA)
# Channels
1
# internal
2 x 68-pin HD
connectors
# External
1 x 68-pin UHD
Connectors
RAID Levels
0, 1, 5, 10, 50
Supported
Cluster
no
Support?
Cache Size
64 MB
(DIMM)
off, write-
Write Cache
through,
Options
write-back
read-ahead
Read Cache
(default),
Options
(selectable)
BBU Battery Life
no BBU
Max # Logical
40
Drives/Controller
Max # Physical
Drives/Logical
32
Drive
Vendor
LSI
SCSI Chip
LSI 53C1020
RAID Processor
Intel GC80302
PAGE 37
Table 5-2 – Controller Families and Features: Part 2
PERC 4/SC
PERC 4/DC
Wide Ultra320
64-bit / 66 MHz
PCI 2.2 (HBA)
2
2 x 68-pin HD
2 x 68-pin UHD
0, 1, 5, 10, 50
yes
128MB
off, write-
through,
write-back
read-ahead
off
(default),
(selectable)
48-72 hours
40
32
LSI
LSI 53C1030
Intel GC80303
PERC 3/SC
Wide Ultra3 /
U160
64-bit / 66 MHz
PCI 2.2 (HBA)
1
1 x 68-pin HD
1 x 68-pin UHD
0, 1, 5, 10, 50
no
64 or 128MB
off, write-
through,
write-back
read-ahead
off
(default),
off
(selectable)
no BBU
40
32
LSI (AMI)
Qlogic 12160
Intel i960
VER A02
PERC 3/DCL
Wide Ultra3 /
U160
64-bit / 66 MHz
PCI 2.2 (HBA)
2
2 x 68-pin HD
2 x 68-pin UHD
0, 1, 5, 10, 50
No
64 or 128MB
off, write-
through,
write-back
read-ahead
(default),
off
(selectable)
no BBU
40
32
LSI (AMI)
Qlogic 12160
Intel i960
11/17/2005