User's Manual

b) For WT mode, run the command: fldc --enable --disk=/dev/sdb --mode=wt
The system displays the following message: SUCCESS: Caching enabled on Disk:/dev/sdb
Cache Mode:write-through Created Virtual Cache Disk:/dev/fldc0
.
NOTE: During installation, Fluid Cache for DAS adds a line to /etc/fstab. The /etc/fstab file is a
Linux file used to auto-mount file systems at system startup. It is important that you “comment out” (#) lines in
the
/etc/fstab file that identify current disks that you plan to cache using Fluid Cache for DAS. For an
example of the commenting out process, see the topic “Fluid Cache Disk for DAS Does Not Appear” in
Troubleshooting Fluid Cache For DAS.
7. Display the status of Fluid Cache to confirm it is configured and operational by running the command: fldc --
status
A set of information is displayed similar to the following:
Fluid
Cache
Service:
Cache
size:
652 GiB
Status: ok
SSDs in
Cache:
2
Disks
being
cached:
1
Write
Back:
available
Cache
ID:
<any_node>.example.com
License: node - limited to 4 nodes
License
Status:
valid
SSDs in cache:
SSD UID Size-GiB Status
/dev/
rssda
500A07510202604
1
326 ok
/dev/
rssdb
500A07510202637
4
326 ok
Disks being cached:
Disk
Status:
Fluid Cache
Disk UID
Size-GiB Mode Status
/dev/sdb
/dev/
fldc0
6D4AE520A7D6FE0
01796D94409CFB9
35
465 wb ok
14