I use an external Seagate USB drive to send incremental snapshots of my data.
I know it is not the perfect solution but it does its job. The problem:
It appears that the drive decides to go to sleep after some period of inactivity. Causing issues like those:
What I usually do to avoid this kind of problem is to import the pool before I send the snapshots and then immediately export it. But this is a cheap workaround and it kind of beats the purpose of automated backup. So, I am looking for a command to run as a cron job maybe, that can query the drive every now and then in order to wake up from its deep sleep!
Any suggestions are very welcomed.
Code:
Jun 4 13:29:51 hp kernel: da0: <Seagate FreeAgent Go 0138> Fixed Direct Access SCSI-4 device
Jun 4 13:29:51 hp kernel: da0: 40.000MB/s transfers
Jun 4 13:29:51 hp kernel: da0: 610480MB (1250263726 512 byte sectors: 255H 63S/T 77825C)It appears that the drive decides to go to sleep after some period of inactivity. Causing issues like those:
Code:
Jun 4 04:17:11 hp root: ZFS: checksum mismatch, zpool=zbackup path=/dev/da0 offset=416888403456 size=512Any suggestions are very welcomed.