Hello Petros Koutoupis. All right with you ?
Users need know Rapiddisk.
I have been using more than one year and works very good. Amazing tool.
The only problem is when doing writeback in an BTRFS disk not being related with Rapiddisk.
When cache is full is done an flush in the disk, but in sometimes is an partial written.
That action can damage an BTRFS partition with the error "parent transid verify failed"
"Parent transid verify failed" is the result of a failed internal consistency check of the filesystem's metadata"
Unhappily few times is possible fix it. File system was damaged.
"On-disk metadata is committed every time a FLUSH or FUA bio is written. If no such requests are made then commits will occur every second. This means the cache behaves like a physical disk that has a volatile write cache. If power is lost you may lose some recent writes. The metadata should always be consistent in spite of any crash."
When Rapiddisk create the wb caches which are the commands used when creating the dm-writeback for disk partitions ?
If are several commands not need reply with commands about it. The commands are documented ?
Only trying understand if is possible some configuration to avoid the problem above or if is problem when using dm-writecache module in an BTRFS partition and after sharing any information useful.
Have an good day.
Hello Petros Koutoupis. All right with you ?
Users need know Rapiddisk.
I have been using more than one year and works very good. Amazing tool.
The only problem is when doing writeback in an BTRFS disk not being related with Rapiddisk.
When cache is full is done an flush in the disk, but in sometimes is an partial written.
That action can damage an BTRFS partition with the error "parent transid verify failed"
"Parent transid verify failed" is the result of a failed internal consistency check of the filesystem's metadata"
Unhappily few times is possible fix it. File system was damaged.
"On-disk metadata is committed every time a FLUSH or FUA bio is written. If no such requests are made then commits will occur every second. This means the cache behaves like a physical disk that has a volatile write cache. If power is lost you may lose some recent writes. The metadata should always be consistent in spite of any crash."
When Rapiddisk create the wb caches which are the commands used when creating the dm-writeback for disk partitions ?
If are several commands not need reply with commands about it. The commands are documented ?
Only trying understand if is possible some configuration to avoid the problem above or if is problem when using dm-writecache module in an BTRFS partition and after sharing any information useful.
Have an good day.