System information

31 of 114Release 7.0VNX™ System Operations
VNX5100 planned powerdown
The VNX5100 is available in one configuration: block. Follow the instructions for
your system configuration.
Block
The tasks to power down the VNX5100 include stopping I/O, halting the storage
processors, and powering down the system by using the SPS power switches.
Step Action
1. When possible, before you power down the VNX5100, notify all users of the powerdown.
2. Stop all I/O activity to the Storage Processors in the DPE.
If the server connected to the DPE is running the Linux or UNIX operating system, back
up critical data and then unmount the file systems.
Stopping I/O allows the SP to destage cache data, and may take some time. The length of
time depends on criteria such as the size of the cache, the amount of data in the cache,
the type of data in the cache, and the target location on the disks, but it is typically less
than one minute.
3. Wait 5 minutes.
4. Use the SPS power switches to power off the storage system. .
Wait two minutes to allow the storage system to write its cache to disk. Make sure that the
SPS power indicators are off before continuing.The storage system will power down
within 2 minutes.
For systems with a single SPS, after waiting two minutes, unplug the SP B and DAE 0
LCC B power cables from the PDU.
5. Disconnect the power cables that run from the Standby Power Supplies to the DAE.
Note: This turns off the power to the SPS and the DPE. If the intent is to power off the
entire array, then shutdown each DAE as well.
6. If there are multiple DAEs, disconnect the power cables from each DAE to the PDP. This
powers down the DAEs.
CIP-001115
SPS power
switch A
SPS power
switch B