71
For the latest product & technical information, refer to the Information Sources on pages 2 and 3.
Updated 12/03/02
IB
M
xS
eri
e
s
2
2
5
xSeries 225 nonhot-swap models are cabled internally with a four-drop, 16-bit wide Ultra320 SCSI cable with a built-in active terminator at one end of the cable. The
other end of the cable is attached to the internal 68-pin connector of channel A of the integrated Ultra320 SCSI controller. SCSI HDDs can be connected to any of
the four cable connectors.
xSeries 225 hot-swap models are cabled internally with a single-drop, nonterminated 16-bit wide Ultra320 SCSI cable. One end is connected to the internal 68-pin
connector of channel A of the integrated Ultra320 SCSI controller and the other end to the hot-swap backplane, which provides termination for the SCSI bus.
RAID Configurations
Optional Ultra160 ServeRAID-4Lx, -4Mx or -4H can be used to support HDDs installed in eiher nonhot-swap or hot-swap models of xSeries 225. In either installation,
the standard SCSI cable is removed from the integrated Ultra320 SCSI controller and connected to an internal connector of the RAID controller. An internal SCSI tape
drive can be attached to channel A of the integrated Ultra320 controller when the HDDs are attached to a ServeRAID-4x adapter. If ServeRAID-5i is installed, cabling
remains connected and both channels of the integrated controller are managed by the optional adapter. Channel B can be attached to an internal SCSI device if
ServeRAID-5i is configured to support a SCSI bus.
Configuration Alternatives
Optional External SCSI Interface Kit (32P8164) can be installed to enable a 0.8mm VHDCI external connector. Support for external tape drives is limited to half-high
LVD SCSI tape drives if the integrated controller is managed by ServeRAID-5i. External SCSI support can be obtained by installing an optional SCSI adapter to
support external tape storage, or a RAID controller can be installed to support external SCSI HDD storage.
In addition to the SCSI controller, an IDE controller provides the interface for the IDE CD-ROM drive. A two-drop IDE cable connects the IDE controller to the IDE CD-
ROM. The second drop can be used to connect a second optional IDE device.
For additional information regarding internal cabling, refer to Appendix F: Internal Cabling Overview.
xSeries 225 Memory
Total System
Memory
1
Quantity of RDIMMs Added
256MB
(2 x 128)
Models
512MB
(2 x 256)
Models
128MB
(33L5036)
256MB
(33L5037)
512MB
(33L5038)
1GB
(33L5039)
2GB
(33L5040)
512MB
768MB
2
-
-
-
-
768MB
1GB
-
2
-
-
-
1.25GB
1.5GB
-
-
2
-
-
2.25GB
2.5GB
-
-
-
2
-
4.25GB
4GB
-
-
-
-
2
5GB
2
5GB
2
-
-
2
-
2
6GB
2
6GB
2
-
-
-
2
2
8GB
2
8GB
2
-
-
-
-
4
Part
Number
Memory Description
1
This table does not represent all possible memory configurations. Memory modules may vary in price per
MB. Selection of smaller RDIMMs may provide a more cost-effective alternative to using larger RDIMMs.
1. Network operating systems may limit the maximum amount of addressable memory. See operating
system specifications for further information.
2. Requires replacing the standard RDIMM.
33L5036
128MB DDR PC2100 ECC RDIMM
33L5037
256MB DDR PC2100 ECC RDIMM
33L5038
512MB DDR PC2100 ECC RDIMM
33L5039
1GB DDR PC2100 ECC RDIMM
33L5040
2GB PC2100 CL2.5 ECC DDR SDRAM
RDIMM
1. Due to two-way interleaving, installation of memory options in
matched pairs beginning with RDIMMs three and four is
required. Standard RDIMMs are installed in sockets three and
four.
xSeries 225 Internal SCSI Cabling
R
D
IMM
4
R
D
IMM
2
R
D
IMM
3
R
D
IMM
1
top of vertical planar
CPU 1
CPU 2
Содержание 6219 - IntelliStation M - Pro
Страница 179: ...Updated 02 Dec 02 141B...
Страница 243: ...BladeCenter HS20 this page intentionally blank this page intentionally blank Updated 02 Dec 02 191B...
Страница 273: ...IBM Rack Cabinets and Options this page intentionally blank this page intentionally blank Updated 02 Dec 02 217B...
Страница 282: ...226 Refer to the cable labeling key in the Cable Options table appearing later in this section...
Страница 283: ...227...