User's Manual

NOTE: The fldc --export and fldc --import commands are not based on UIDs but on system

names. On Linux, these system names are subject to “name slippage”. Therefore, before

using the export or import commands, you must ensure that the Linux device names for

cache devices (PCIe SSDs) and virtual disks are equivalent on the two systems which are

involved. For example, if /dev/rssda exists on the exporting host, it must also exist on the

importing host and be available for use by Fluid Cache.

NOTE: The fldc --import command includes a feature that verifies server resources before

the actual import. The import command applies changes only if all of the configuration

definitions in the import file can be applied to the cache. This feature does not allow any

changes that conflict with Fluid Cache for DAS.

Displaying N Events For Fluid Cache

Command

fldc --events --num=<N=any number>

Description Use this command to display a quantity of system events to the screen up to a number (N). The

last 10 events are displayed by default if you only use the command fldc --events without typing

the argument. If you attempt to add a previously used PCIe SSD to the node, the following

message is displayed: Cache device initialization failed because it

belongs to another cache pool

. To prepare it for reuse, reinsert the device into the

server it came from and discretely remove it or contact support for assistance. You may need

to run the utility fldc_cachedev_wipe to prepare the device for reuse.

Displaying All Events For Fluid Cache Based On Time

Command

fldc --events --time=<T=any time>

Description Use this command to review all events recorded in the log file after a particular time.

NOTE: Enter time in the following format: <Day> <Month> <Date> <Hour: Minute: Second>

<Year>. For example: Fri Sep 10 0:0:0 2012 . You must use the Linux system time

format but include the day of the week.

Adding A PCIe SSD To The Cache Pool

Command

fldc --add --ssd=<dev_name or uid>

Description

CAUTION: The command fldc --add --ssd=<dev_name or uid> removes all data from the

PCIe SSD that you are adding to the cache pool.

Use this command to add a PCIe SSD to the cache pool.

Removing A Working PCIe SSD From The Cache Pool

Command

fldc --remove --ssd=<ssd_name or uid>[-v verbose option]

Description Use this command to remove a working PCIe SSD from the cache pool. Use the same

command with a UID to remove a failed PCIe SSD.