WD EX2 when populating 2 disks ata1: SError: { PHYRdyChg DevExch }

Hi forum,

i bought a new WD Red 4TB Drive today for my WD EX2 with 3TB Drive (JBOD Config) with latest FW 2.11.178

When adding the 4TB Drive the box ran staight into error after 5min of up&down spinning of both disks.

What i did:

  • configred the 4TB Disk in Slot1 as JBOD (Slot2 empty) -> OK
  • tested each Disk in each Slot separately -> OK ( RAID-Roaming came up a couple of time but no issues)
  • Cross Swapped both Disks
  • Hot Plug the Disk into Slot2
  • Hard Reset of WD EX2 (40s)
  • but as soon as i populate a Disk in Slot2 it seems to kick of the mount for Disk1 and and raise ATA Failures

It seems this is a BUS? HW Issue on the WD EX2 itself, or is this a kind of incompatiblity?

DMESG Output from SSH Session

Blockquote
Build_for__WD_Kings_Canyon_k3.2.40_32k_hybrid_2014-07-28_lke_9.0.0_r239626_b47

tun: Universal TUN/TAP device driver, 1.6
tun: © 1999-2004 Max Krasnyansky maxk@qualcomm.com
ata1: link is slow to respond, please be patient (ready=0)
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: limiting SATA link speed to 1.5 Gbps
ata1: hard resetting link
UBI: attaching mtd6 to ubi1
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: max. sequence number: 196
UBI: attached mtd6 to ubi1
UBI: MTD device name: “reserve”
UBI: MTD device size: 5 MiB
UBI: number of good PEBs: 40
UBI: number of bad PEBs: 0
UBI: number of corrupted PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 40
UBI: number of PEBs reserved for bad PEB handling: 2
UBI: max/mean erase counter: 7/5
UBI: image sequence number: 39150631
UBI: background thread “ubi_bgt1d” started, PID 2409
ata1: SATA link down (SStatus 0 SControl F310)
UBIFS: mounted UBI device 1, volume 0, name “reserve”
UBIFS: file system size: 3174400 bytes (3100 KiB, 3 MiB, 25 LEBs)
UBIFS: journal size: 1015809 bytes (992 KiB, 0 MiB, 6 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: lzo
UBIFS: reserved for root: 149934 bytes (146 KiB)
UBIFS: un-mount UBI device 1, volume 0
egiga0: mac address changed
egiga0: link up
egiga0: started
egiga0: link down
egiga0: link up, full duplex, speed 1 Gbps
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x100)
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: limiting SATA link speed to 1.5 Gbps
ata1: hard resetting link
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
ata1: link is slow to respond, please be patient (ready=0)
ata1: SRST failed (errno=-16)
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
ata1.00: ATA-9: WDC WD30EFRX-68EUZN0, 82.00A82, max UDMA/133
ata1.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata1.00: configured for UDMA/133
ata1: EH complete
scsi 0:0:0:0: Direct-Access ATA WDC WD30EFRX-68E 82.0 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
sd 0:0:0:0: [sda] 4096-byte physical blocks
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
hotPlug.sh begin(seq=429)…
md: bind
bio: create slab at 1
md/raid1:md0: active with 1 out of 2 mirrors
md0: bitmap file is out of date (0 < 1) – forcing full recovery
created bitmap (16 pages) for device md0
md0: bitmap file is out of date, doing full recovery
md0: bitmap initialized from disk: read 2/2 pages, set 262136 of 262136 bits
md0: detected capacity change from 0 to 2147418112
md0: unknown partition table
Adding 2097056k swap on /dev/md0. Priority:-1 extents:1 across:2097056k
EXT4-fs (sda4): recovery complete
EXT4-fs (sda4): mounted filesystem with ordered data mode. Stripe: 128 Opts: (null)
EXT4-fs (sda2): recovery complete
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
restart sysinfod…
scandisk for power failure now.
volume_stop.sh /mnt/HD/HD_a2…
kill_process.sh /mnt/HD/HD_a2…
Loading iSCSI transport class v2.0-870.
iscsi: registered transport (tcp)
kill_process.sh done.
volume_stop.sh done.
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota

<-- Insert Drive2 -->

ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F300)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
tun: Universal TUN/TAP device driver, 1.6
tun: © 1999-2004 Max Krasnyansky maxk@qualcomm.com
ata1: link is slow to respond, please be patient (ready=0)
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: limiting SATA link speed to 1.5 Gbps
ata1: hard resetting link
UBI: attaching mtd6 to ubi1
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: max. sequence number: 196
UBI: attached mtd6 to ubi1
UBI: MTD device name: “reserve”
UBI: MTD device size: 5 MiB
UBI: number of good PEBs: 40
UBI: number of bad PEBs: 0
UBI: number of corrupted PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 40
UBI: number of PEBs reserved for bad PEB handling: 2
UBI: max/mean erase counter: 7/5
UBI: image sequence number: 39150631
UBI: background thread “ubi_bgt1d” started, PID 2409
ata1: SATA link down (SStatus 0 SControl F310)
UBIFS: mounted UBI device 1, volume 0, name “reserve”
UBIFS: file system size: 3174400 bytes (3100 KiB, 3 MiB, 25 LEBs)
UBIFS: journal size: 1015809 bytes (992 KiB, 0 MiB, 6 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: lzo
UBIFS: reserved for root: 149934 bytes (146 KiB)
UBIFS: un-mount UBI device 1, volume 0
egiga0: mac address changed
egiga0: link up
egiga0: started
egiga0: link down
egiga0: link up, full duplex, speed 1 Gbps
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x100)
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: limiting SATA link speed to 1.5 Gbps
ata1: hard resetting link
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
ata1: link is slow to respond, please be patient (ready=0)
ata1: SRST failed (errno=-16)
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
ata1.00: ATA-9: WDC WD30EFRX-68EUZN0, 82.00A82, max UDMA/133
ata1.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata1.00: configured for UDMA/133
ata1: EH complete
scsi 0:0:0:0: Direct-Access ATA WDC WD30EFRX-68E 82.0 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
sd 0:0:0:0: [sda] 4096-byte physical blocks
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
hotPlug.sh begin(seq=429)…
md: bind
bio: create slab at 1
md/raid1:md0: active with 1 out of 2 mirrors
md0: bitmap file is out of date (0 < 1) – forcing full recovery
created bitmap (16 pages) for device md0
md0: bitmap file is out of date, doing full recovery
md0: bitmap initialized from disk: read 2/2 pages, set 262136 of 262136 bits
md0: detected capacity change from 0 to 2147418112
md0: unknown partition table
Adding 2097056k swap on /dev/md0. Priority:-1 extents:1 across:2097056k
EXT4-fs (sda4): recovery complete
EXT4-fs (sda4): mounted filesystem with ordered data mode. Stripe: 128 Opts: (null)
EXT4-fs (sda2): recovery complete
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
restart sysinfod…
scandisk for power failure now.
volume_stop.sh /mnt/HD/HD_a2…
kill_process.sh /mnt/HD/HD_a2…
Loading iSCSI transport class v2.0-870.
iscsi: registered transport (tcp)
kill_process.sh done.
volume_stop.sh done.
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F300)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F300)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata1: exception Emask 0x10 SAct 0x0 SErr 0x180000 action 0x6 frozen
ata1: edma_err_cause=00000020 pp_flags=00000000, SError=00180000
ata1: SError: { 10B8B Dispar }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete

UBI: data offset: 4096
UBI: max. sequence number: 196
UBI: attached mtd6 to ubi1
UBI: MTD device name: “reserve”
UBI: MTD device size: 5 MiB
UBI: number of good PEBs: 40
UBI: number of bad PEBs: 0
UBI: number of corrupted PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 40
UBI: number of PEBs reserved for bad PEB handling: 2
UBI: max/mean erase counter: 7/5
UBI: image sequence number: 39150631
UBI: background thread “ubi_bgt1d” started, PID 2409
ata1: SATA link down (SStatus 0 SControl F310)
UBIFS: mounted UBI device 1, volume 0, name “reserve”
UBIFS: file system size: 3174400 bytes (3100 KiB, 3 MiB, 25 LEBs)
UBIFS: journal size: 1015809 bytes (992 KiB, 0 MiB, 6 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: lzo
UBIFS: reserved for root: 149934 bytes (146 KiB)
UBIFS: un-mount UBI device 1, volume 0
egiga0: mac address changed
egiga0: link up
egiga0: started
egiga0: link down
egiga0: link up, full duplex, speed 1 Gbps
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x100)
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: limiting SATA link speed to 1.5 Gbps
ata1: hard resetting link
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
ata1: link is slow to respond, please be patient (ready=0)
ata1: SRST failed (errno=-16)
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
ata1.00: ATA-9: WDC WD30EFRX-68EUZN0, 82.00A82, max UDMA/133
ata1.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata1.00: configured for UDMA/133
ata1: EH complete
scsi 0:0:0:0: Direct-Access ATA WDC WD30EFRX-68E 82.0 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
sd 0:0:0:0: [sda] 4096-byte physical blocks
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
hotPlug.sh begin(seq=429)…
md: bind
bio: create slab at 1
md/raid1:md0: active with 1 out of 2 mirrors
md0: bitmap file is out of date (0 < 1) – forcing full recovery
created bitmap (16 pages) for device md0
md0: bitmap file is out of date, doing full recovery
md0: bitmap initialized from disk: read 2/2 pages, set 262136 of 262136 bits
md0: detected capacity change from 0 to 2147418112
md0: unknown partition table
Adding 2097056k swap on /dev/md0. Priority:-1 extents:1 across:2097056k
EXT4-fs (sda4): recovery complete
EXT4-fs (sda4): mounted filesystem with ordered data mode. Stripe: 128 Opts: (null)
EXT4-fs (sda2): recovery complete
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
restart sysinfod…
scandisk for power failure now.
volume_stop.sh /mnt/HD/HD_a2…
kill_process.sh /mnt/HD/HD_a2…
Loading iSCSI transport class v2.0-870.
iscsi: registered transport (tcp)
kill_process.sh done.
volume_stop.sh done.
EXT4-fs (sda2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F300)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F300)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata1: exception Emask 0x10 SAct 0x0 SErr 0x180000 action 0x6 frozen
ata1: edma_err_cause=00000020 pp_flags=00000000, SError=00180000
ata1: SError: { 10B8B Dispar }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata1: SATA link down (SStatus 0 SControl F310)
ata1.00: link offline, clearing class 1 to NONE
ata1.00: disabled
ata1: EH complete
ata1.00: detaching (SCSI 0:0:0:0)
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: hard resetting link
sd 0:0:0:0: [sda] Synchronizing SCSI cache
hotPlug.sh begin(seq=458)…
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: SATA link down (SStatus 0 SControl F310)
ata2.00: link offline, clearing class 1 to NONE
ata2: EH complete
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata2: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata2: SError: { PHYRdyChg DevExch }
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
md: cannot remove active disk sda1 from md0 …
ata1: SATA link down (SStatus 0 SControl F300)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
sd 0:0:0:0: [sda] Stopping disk
sd 0:0:0:0: [sda] START_STOP FAILED
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
Aborting journal on device sda2-8.
JBD2: I/O error detected when updating journal superblock for sda2-8.
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
md: cannot remove active disk sda1 from md0 …
JBD2: I/O error detected when updating journal superblock for sda4-8.
ata2: link is slow to respond, please be patient (ready=0)
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
ata2.00: ATA-10: WDC WD40EFRX-68N32N0, 82.00A82, max UDMA/133
ata2.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 31/32)
ata2.00: configured for UDMA/133
ata2: EH complete
scsi 1:0:0:0: Direct-Access ATA WDC WD40EFRX-68N 82.0 PQ: 0 ANSI: 5
sd 1:0:0:0: [sdb] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
sd 1:0:0:0: [sdb] 4096-byte physical blocks
sd 1:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sdb: sdb1 sdb2 sdb3 sdb4
sd 1:0:0:0: [sdb] Attached SCSI disk
hotPlug.sh begin(seq=467)…
hotPlug.sh end(seq=458).
hotPlug.sh end(seq=467).

volume_stop.sh /mnt/HD/HD_a2…
kill_process.sh /mnt/HD/HD_a2…
kill_process.sh done.
volume_stop.sh done.
EXT4-fs error (device sda2): ext4_journal_start_sb:328: Detected aborted journal
EXT4-fs (sda2): Remounting filesystem read-only
EXT4-fs error (device sda2): ext4_put_super:831: Couldn’t clean up the journal
Read-error on swap-device (9:0:64)
Read-error on swap-device (9:0:128)
Read-error on swap-device (9:0:192)
md: super_written gets error=-19, uptodate=0
md0: detected capacity change from 2147418112 to 0
md: md0 stopped.
md: unbind
md: export_rdev(sda1)
md: bind

ata2: EH complete
scsi 1:0:0:0: Direct-Access ATA WDC WD40EFRX-68N 82.0 PQ: 0 ANSI: 5
sd 1:0:0:0: [sdb] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
sd 1:0:0:0: [sdb] 4096-byte physical blocks
sd 1:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sdb: sdb1 sdb2 sdb3 sdb4
sd 1:0:0:0: [sdb] Attached SCSI disk
hotPlug.sh begin(seq=467)…
hotPlug.sh end(seq=458).
hotPlug.sh end(seq=467).
volume_stop.sh /mnt/HD/HD_a2…
kill_process.sh /mnt/HD/HD_a2…
kill_process.sh done.
volume_stop.sh done.
EXT4-fs error (device sda2): ext4_journal_start_sb:328: Detected aborted journal
EXT4-fs (sda2): Remounting filesystem read-only
EXT4-fs error (device sda2): ext4_put_super:831: Couldn’t clean up the journal
Read-error on swap-device (9:0:64)
Read-error on swap-device (9:0:128)
Read-error on swap-device (9:0:192)
md: super_written gets error=-19, uptodate=0
md0: detected capacity change from 2147418112 to 0
md: md0 stopped.
md: unbind
md: export_rdev(sda1)
md: bind
bio: create slab at 1
md/raid1:md0: active with 1 out of 2 mirrors
md0: bitmap file is out of date (0 < 1) – forcing full recovery
created bitmap (16 pages) for device md0
md0: bitmap file is out of date, doing full recovery
md0: bitmap initialized from disk: read 2/2 pages, set 262136 of 262136 bits
md0: detected capacity change from 0 to 2147418112
md0: unknown partition table
Adding 2097056k swap on /dev/md0. Priority:-1 extents:1 across:2097056k
EXT4-fs (sdb4): recovery complete
EXT4-fs (sdb4): mounted filesystem with ordered data mode. Stripe: 0 Opts: (null)
EXT4-fs (sdb2): recovery complete
EXT4-fs (sdb2): mounted filesystem with ordered data mode. Stripe: 0 Opts: usrquota,grpquota
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl F300)
ata1.00: link offline, clearing class 1 to NONE
ata1: EH complete
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen
ata1: edma_err_cause=00000010 pp_flags=00000000, dev connect
ata1: SError: { PHYRdyChg DevExch }
ata1: hard resetting link

Issue resolved due to incorrect Power Supply