ふと気づいたのですが、交換したディスクがsdcではなくsdgで
認識されているみたいですが、これでよかったんでしょうか?

RNDU6000:/var/log# cat /var/log/kern.log
〜省略〜
Sep 13 03:05:56 RNDU6000 kernel: ata3: irq_stat 0x00000040, connection status changed
Sep 13 03:05:56 RNDU6000 kernel: ata3: SError: { CommWake DevExch }
Sep 13 03:05:56 RNDU6000 kernel: ata3: hard resetting link
Sep 13 03:06:02 RNDU6000 kernel: ata3: link is slow to respond, please be patient (ready=0)
Sep 13 03:06:06 RNDU6000 kernel: ata3: COMRESET failed (errno=-16)
Sep 13 03:06:06 RNDU6000 kernel: ata3: hard resetting link
Sep 13 03:06:07 RNDU6000 kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Sep 13 03:06:07 RNDU6000 kernel: ata3.00: ATA-8: TOSHIBA DT01ACA300, MX6OABB0, max UDMA/133
Sep 13 03:06:07 RNDU6000 kernel: ata3.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA
Sep 13 03:06:07 RNDU6000 kernel: ata3.00: configured for UDMA/133
Sep 13 03:06:07 RNDU6000 kernel: ata3: EH complete
Sep 13 03:06:07 RNDU6000 kernel: scsi 2:0:0:0: Direct-Access ATA TOSHIBA DT01ACA3 MX6O PQ: 0 ANSI: 5
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: Attached scsi generic sg2 type 0
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] 4096-byte physical blocks
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] Write Protect is off
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] Mode Sense: 00 3a 00 00
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Sep 13 03:06:08 RNDU6000 kernel: sdg: unknown partition table
Sep 13 03:06:08 RNDU6000 kernel: sd 2:0:0:0: [sdg] Attached SCSI disk
Sep 13 03:06:13 RNDU6000 kernel: md: cannot remove active disk sdc3 from md2 ...