Storing Transactional Logs of Fabric Proxy on a Different Disk¶

Users with the partner or support permission can move Fabric Proxy transactional logs to a different disk. These logs include information about read/write operations to and from the Fabric Proxy.

1. Enter the sudo rescan-scsi-bus command to detect newly added devices.

2. Execute one of following commands depending on the number of devices:

   2.1. To add a single device as a transaction log device, enter the command sudo zpool create -o ashift=12 -O atime=off -O canmount=off -O compression=lz4 fablog_pool /dev/sdc -f.

   2.2. To add two devices in the mirror mode as transaction log devices, enter the command sudo zpool create -o ashift=12 -O atime=off -O canmount=off -O compression=lz4 fablog_pool mirror /dev/sdc /dev/sdd -f.

   2.3. To add three devices in the RaidZ mode as transaction log devices, enter the command sudo zpool create -o ashift=12 -O atime=off -O canmount=off -O compression=lz4 fablog_pool raidz /dev/sdc /dev/sdd /dev/sde -f.

3. The new configurations now get stored in the cache. To load the configurations, export and import zpool using the commands sudo zpool export fablog_pool and sudo zpool import -d /dev/ fablog_pool.

4. Make a mountpoint and mount it to fablog_pool using the command sudo zfs create -o mountpoint=/opt/commander/fablog fablog_pool/fablog.

5. Stop the Fabric Proxy service by using the command sudo sv stop zookeeper.

6. Copy the existing transaction log to a new mountpoint using the command sudo cp -vr /opt/commander/var/zookeeper/log/version-2 /opt/commander/fablog/.

7. Modify the fabric configuration file to point to the new mountpoint using the command sudo sed -i ‘s/var/zookeeper/log/fablog/’ /opt/commander/installed/zookeeper/conf/zoo.cfg sed -i ‘s/var/zookeeper/log/fablog/’ /ecd tc/service/fabcleanup/run.

8. Start the Fabric Proxy service using the command sudo sv start zookeeper.

Transactional logs are now stored on a different disk.