One of the disks in maps-test2001 is broken:
[1386660.527923] ata5.00: status: { DRDY ERR }
[1386660.532118] ata5.00: error: { UNC }
[1386660.536343] ata5.00: configured for UDMA/133
[1386660.536360] sd 4:0:0:0: [sdb] tag#10 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
[1386660.536364] sd 4:0:0:0: [sdb] tag#10 Sense Key : Medium Error [current]
[1386660.536367] sd 4:0:0:0: [sdb] tag#10 Add. Sense: Unrecovered read error - auto reallocate failed
[1386660.536370] sd 4:0:0:0: [sdb] tag#10 CDB: Read(10) 28 00 00 08 f0 08 00 00 08 00
[1386660.536372] I/O error, dev sdb, sector 585736 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2The serial is Y84S1131TCZQ.
This is a very old server, for which we will eventually need to figure out a replacement, but in the interim, do we have a compatible disk from a decommissioned server to replace it?