Task 29: Check The Cluster Health - EMC VPLEX with GeoSynchrony 4.2 Installation And Setup Manual

Setting up a VPLEX Metro implementation
Task 29: Check the
cluster health
64 EMC VPLEX with GeoSynchrony 4.2 Installation and Setup Guide
3. VPlexcli-2 Type the following command to create an extent:
extent create -d <storage-volume_name>,<storage-volume_
name>,.....
Repeat this step for each extent you want to create on the cluster.
4. VPlexcli-2 Type the following commands to create the logging volume:
cd /clusters/cluster-<Cluster_ID>/system-volumes
logging-volume create -n <name> -g <raid_geometry> -e <extent_1> ,
<extent_2> [, <extent_3> ... <extent_n>] -d <stripe_depth>
where:
• <name> is a name for the logging volume.
• <raid_geometry> is the RAID type: raid-0 or raid-1.
• <extent_> identifies the name(s) of the extent(s) that make(s) up the logging
volume.
• -d <stripe_depth> is required only if <geometry> is raid-0.
The stripe depth must be:
– Greater than zero, but no greater than the number of blocks of the smallest
element of the RAID 0 device being created
– A multiple of 4000 bytes
Note: A depth of 32 means that 128 K (32 x 4 K) is written to the first disk, the next
128 K is written to the next disk, and so on.
Note: Concatenated RAID devices are not striped.
Example for cluster 2:
logging-volume create -n cluster_2_log_vol -g raid-0 -e ext1 , ext2
-d 32
5. VPlexcli-1 From the VPlexcli prompt on management server 1, repeat steps
through 4 for cluster 1.
1. VPlexcli-1 From the VPlexcli prompt on cluster 1, type the following
command:
health-check
In the output, confirm the following:
• Operational Status and Health State are ok.
• Operational Status and Health State of the metadata volumes are ok.
• There are no unhealthy storage volumes.
• Each storage volume is visible from all directors and with at least two paths.
2. VPlexcli-2 From the VPlexcli prompt on cluster 2, repeat the health-check
command, and confirm the output as described in step 1.
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