HP StorageWorks 7110 - Virtual Array, Руководство по обслуживанию, Страница: 120 / 164

120 Servicing & Upgrading
Array Controller DIMMs
Removing an Array Controller DIMM
(HP Service Personnel Only )
Caution DIMMs can be damaged by electrostatic discharge. Use the ESD
kit provided when removing and installing DIMMs.
The following procedures are used when removing/installing
DIMMs on a single controller. If you are upgrading the DIMMs
on both controllers, you must shutdown the array. See
"Upgrading Array Controller DIMMs" on page 135 .
1 Remove the array controller card. See "Removing an Array Controller" on
page 107 .
2 Remove the battery. See "Removing an Array Controller Battery" on
page 117 .
Caution The battery must be removed to ensure there is no power to the
DIMMS and to prevent damage to DIMMs caused by voltage
spikes. After removing the battery, wait 2 minutes before
removing DIMMs. This allows any residual charge to drain from
the DIMMs.
3 Use your thumbs to pull out both DIMM extraction levers ( Figure 48 , 1) at
the same time. The DIMM will automatically pop out of the DIMM slot.
4 Remove the DIMM (2) from the slot.
Installing an Array Controller DIMM
(HP Service Personnel Only)
Caution
— DIMMs can be damaged by electrostatic discharge. Use the ESD kit
provided when removing and installing DIMMs.
— To avoid interference when installing DIMMs, always load the DIMM 1
slot first (see Figure 48 , 2).
— Controller firmware 13 and earlier supports a maximum of 1 Gbyte of
cache memory per controller. Installing more than 1 Gbyte of memory
can cause data loss.
— Replacement DIMMs must have the same memory size as the DIMMs
being replaced. Otherwise, the array controller will report a “Memory
Mismatch”. If the array is powered-on after the array controller is