Technical data

10
Upgrading
Options for
Supported
Trays
Table 1 Upgrading Options for Supported Trays
Upgrading
Cache Memory
There are several option for upgrading cache memory in a controller-drive tray or a
controller tray.
 Each controller canister in the CE7900 controller tray has two sockets for cache
memory DIMMs and a cache backup memory device. Use this procedure to add a
cache memory DIMM, if the space is available, or upgrade an existing cache
memory DIMM and, if necessary, add a cache backup memory device.
Tray Name Tray Upgrading Option
Upgrade Host Adapters
CE7900
 Upgrade 4-Gb/s FC to 8-Gb/s FC.
 Upgrade 1-Gb/s iSCSI to 10-Gb/s iSCSI.
 Install a second HIC (4-Gb/s FC, 8-Gb/s FC, 1-Gb/s
iSCSI, 10-Gb/s iSCSI).
E5400 Install a HIC in addition to the base host ports (8-Gb/s FC or
40-Gb/s InfiniBand).
E2600 Install a HIC in addition to the base host ports (8-Gb/s FC,
1-Gb/s iSCSI, 10-Gb/s iSCSI, 6-Gb/s SAS).
Upgrade Cache Memory
CE7900
 Populate empty DIMM slots to increase capacity to 8-GB
and add an additional cache backup memory device.
 Replace 1-GB DIMMS with 2-GB DIMMs to increase
capacity to 16 GB and add an additional cache backup
memory device.
 Replace 2-GB DIMMS with 4-GB DIMMs to increase
capacity to 16 GB and add an additional cache backup
memory device.
E5400
 Replace 2-GB DIMMS with 4-GB DIMMs to increase
capacity to 12GB and add an additional cache backup
memory device.
 Replace 4-GB DIMMS with 8-GB DIMMs to increase
capacity to 24 GB and add an additional cache backup
memory device.
E2600
 Replace 1-GB DIMMS with 2-GB DIMMs to increase
capacity to 2 GB.
 Replace 2-GB DIMMS with 4-GB DIMMs to increase
capacity to 4 GB.