November 13, 2019

Replaced IronWolf Pro 8TB with Ultrastar DC HC510 10TB

by dwm — Categories: Computing, FreeBSDLeave a comment

Due to a firmware problem in the Seagate IronWolf Pro 8TB drives that makes them incompatible with ZFS on FreeBSD, I returned them over the weekend and ordered a pair of Ultrastar DC HC510 10TB drives. I’ve had phenomenal results from Ultrastars in the past, and as near Its I can tell they’ve always been very good enterprise-grade drives regardless of the owner (IBM, Hitach, HGST, Western Digital). The Ultrastars arrived today, and I put them in the zfs1 pool:

# zpool list -v
NAME               SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
zfs1              16.3T  2.13T  14.2T        -         -    10%    13%  1.00x  ONLINE  -
  mirror          3.62T  1.53T  2.09T        -         -    29%    42%
    gpt/gpzfs1_0      -      -      -        -         -      -      -
    gpt/gpzfs1_1      -      -      -        -         -      -      -
  mirror          3.62T   609G  3.03T        -         -    19%    16%
    gpt/gpzfs1_2      -      -      -        -         -      -      -
    gpt/gpzfs1_3      -      -      -        -         -      -      -
  mirror          9.06T  1.32M  9.06T        -         -     0%     0%
    gpt/gpzfs1_4      -      -      -        -         -      -      -
    gpt/gpzfs1_5      -      -      -        -         -      -      -

Everything seems good. Note that the scrub repair of 33.8G was due to me pulling the IronWolf drives from the chassis with the system live (after having removed them from the pool). This apparently caused a burp on the backplane, which was fully corrected by the scrub.

# zpool status
  pool: zfs1
 state: ONLINE
  scan: scrub repaired 33.8G in 0 days 04:43:10 with 0 errors on Sun Nov 10 01:45:59 2019
remove: Removal of vdev 2 copied 36.7G in 0h3m, completed on Thu Nov  7 21:26:09 2019
    111K memory used for removed device mappings
config:

	NAME              STATE     READ WRITE CKSUM
	zfs1              ONLINE       0     0     0
	  mirror-0        ONLINE       0     0     0
	    gpt/gpzfs1_0  ONLINE       0     0     0
	    gpt/gpzfs1_1  ONLINE       0     0     0
	  mirror-1        ONLINE       0     0     0
	    gpt/gpzfs1_2  ONLINE       0     0     0
	    gpt/gpzfs1_3  ONLINE       0     0     0
	  mirror-3        ONLINE       0     0     0
	    gpt/gpzfs1_4  ONLINE       0     0     0
	    gpt/gpzfs1_5  ONLINE       0     0     0

errors: No known data errors

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