Administrator Guide

volume. The rows displays the activity of individual nodes that are accessing the cache volume. A normal,
healthy cluster displays a status of online for each node’s access to the Fluid Cache device.
• Device — Displays the name of the Fluid Cache block device.
• Hostname — Displays the hostname of the nodes that have that block device mapped to them. For
VMware the device will be mapped to all nodes in the cluster.
• Connection — Displays the connection protocol the block device uses to connect to the cache
servers. The connection protocols should be RDMA/RC.
• Size(GB) — Displays the size of the Compellent Volume that is being cached in GB.
• Persistent — Displays the WWN of the Compellent backing store, note the 8 in the middle of all the
zeros of the WWN.
• Status — Displays the current status of the vblock device on each node. If the device status is offline,
the issue that took the device offline must be resolved, and then the device must be reactivated in EM.
• Openers — Displays the number of processes that have the device open.
• Read (GB) — Displays the number of GB that have been read from the block device.
• Write (GB) — Displays the number of GB that have been written to the block device.
• Read rate (MB/s) — Displays the Current rate at which data is being read from the block device in
MB/s.
• Write rate (MB/s) — Displays the current rate at which data is being written to the block device in
MB/s
• Reads/s — Displays the current number of reads per seconds that are being read from the block
device.
• Write/s — Displays the current number of writes per second that are being written to the block
device.
48