Administrator Guide

• Flush write dirty (GB) — Display the total amount of dirty data that has been written to the Compellent,
may be different from the Flush write because whole cache blocks can be written to the Compellent
even if all of the sectors within the cache block are not dirty.
• Reads/s— Display the current rate of reads per second from the Compellent.
• Writes/s — Display the current rate of writes per second to the Compellent.
• Flush write rate (MB/s) — Display the current rate at which data is being written to the Compellent in
MB/s.
• Flush write dirty rate (MB/s) — Display the current rate at which dirty data is being written to the
Compellent in MB/s.
• Write Same (GB)— Not Used.
• Write Same rate (MB/s) — Not Used.
Block Device Stats
The Block Device Stats section displays the activity of each Fluid Cache device. The first row displays the
internal device name of the cached volume and the total activity of the hosts accessing the cache 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.
• 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.
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