Fred.
Cadet
- Joined
- Apr 20, 2015
- Messages
- 4
Hi,
I'm new to TrueNAS and I have some WD drives that should be capable to convert to 4k sectors.
I want to do the right thing to get the best performance and avoid emulation.
This is what I see with smartctl.
From what I understand it's seeing the drive as 4k but is using 512k sectors on it? That's not good then? For best performance that should be the same?
There is no data on the disks / pool so I can still convert things. Just not sure how.
Does that look good or bad to you?
Thanks
Fred.
I'm new to TrueNAS and I have some WD drives that should be capable to convert to 4k sectors.
I want to do the right thing to get the best performance and avoid emulation.
This is what I see with smartctl.
From what I understand it's seeing the drive as 4k but is using 512k sectors on it? That's not good then? For best performance that should be the same?
There is no data on the disks / pool so I can still convert things. Just not sure how.
Does that look good or bad to you?
Code:
smartctl -i /dev/da22 smartctl 7.1 2019-12-30 r5022 [FreeBSD 12.2-RC3 amd64] (local build) Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Vendor: WDC Product: WUH721818AL5204 Revision: C120 Compliance: SPC-5 User Capacity: 18,000,207,937,536 bytes [18.0 TB] Logical block size: 512 bytes Physical block size: 4096 bytes
Code:
zdb -U /data/zfs/zpool.cache | grep ashift ashift: 12
Thanks
Fred.