Hi, I have two zvols exported from Linux via iSCSI to Windows 10. The usage of the volumes is for Steam game library and idea was that with deduplication consume the space for only one.
In practice I had to reinstall some games a few times add/remove some games and now the zfs usage is higher than the allocated in windwos.
It seems the issue is the lack of TRIM support for iSCSI device.
fsutil fsinfo sectorinfo S:
LogicalBytesPerSector : 512
PhysicalBytesPerSectorForAtomicity : 512
PhysicalBytesPerSectorForPerformance : 512
FileSystemEffectivePhysicalBytesPerSectorForAtomicity : 512
Device Alignment : Aligned (0x000)
Partition alignment on device : Aligned (0x000)
Performs Normal Seeks
Trim Not Supported
Not DAX capable
Do you know if there are some settings on the windows iSCSI target or in Linux to tgtadm to enable the trim?
Thanks.