TS-470 Pro RAID 5 (4 disks) Degradated, plugged out, etc.

[grzyp]

Hey,
From few days I have a problem with HDD4 in my NAS.
From some reason disk is failed, plugged out and i have to rebuild raid on it (disable application etc. to finish rebuild task).
Maybe anyone have an idea what to do with this case ?
In logs i have such events :

23,"Error","2014-11-26","13:25:31","System","127.0.0.1","localhost","Host: Drive4 plugged out."
22,"Error","2014-11-26","13:25:25","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
21,"Error","2014-11-26","13:25:10","System","127.0.0.1","localhost","Plugged drive failed to work."
20,"Information","2014-11-26","02:00:27","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Succeed to reclaim volume."
19,"Information","2014-11-26","02:00:01","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Start to reclaim volume."
18,"Information","2014-11-25","02:00:19","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Succeed to reclaim volume."
17,"Information","2014-11-25","02:00:01","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Start to reclaim volume."
16,"Information","2014-11-24","16:38:56","System","127.0.0.1","localhost"," [Pool 1] Rebuilding completed with RAID Group 1."
15,"Information","2014-11-24","09:29:56","System","127.0.0.1","localhost"," [Pool 1] Start rebuilding with RAID Group 1."
14,"Information","2014-11-24","09:26:37","System","127.0.0.1","localhost","Host: Drive4 plugged in."
13,"Information","2014-11-24","09:26:37","System","127.0.0.1","localhost"," [RAID Group 1] Degraded. Try to rebuild.
"
12"",""Warning"",""2014-11-24"",""09:26:37"",""System"",""127.0.0.1"",""localhost"","" [Pool 1] Rebuilding skipped with RAID Group 1."""
11,"Error","2014-11-24","09:26:36","System","127.0.0.1","localhost","Host: Drive4 plugged out."
10,"Error","2014-11-24","09:26:31","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
9,"Warning","2014-11-24","09:26:19","System","127.0.0.1","localhost","Host: Drive4 Write I/O error, ABORTED COMMAND sense_key=0xb, asc=0x0, ascq=0x0, CDB=2a 00 12 a8 70 88 00 00 80 00 ."
8,"Error","2014-11-24","09:26:19","System","127.0.0.1","localhost","Plugged drive failed to work."
7,"Information","2014-11-24","09:01:14","System","127.0.0.1","localhost"," [Pool 1] Start rebuilding with RAID Group 1."
6,"Information","2014-11-24","08:58:16","System","127.0.0.1","localhost","Host: Drive4 plugged in."
5,"Error","2014-11-24","08:58:10","System","127.0.0.1","localhost","Host: Drive4 plugged out."
4,"Error","2014-11-24","08:58:05","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
3,"Error","2014-11-24","08:57:53","System","127.0.0.1","localhost","Plugged drive failed to work."

I run also scrript from previous post :

echo "Firmware: $(getcfg system version) Build $(getcfg system 'Build Number')"
for i in {a..d}; do echo -n /dev/sd$i ; hdparm -i /dev/sd$i | grep "Model"; done
cat /proc/mdstat
mdadm -D /dev/md0

And I have such output :


[~] # echo "Firmware: $(getcfg system version) Build $(getcfg system 'Build Number')"
Firmware: 4.1.1 Build 20141101
[~] # for i in {a..d}; do echo -n /dev/sd$i ; hdparm -i /dev/sd$i | grep "Model"; done
/dev/sda/dev/sda: No such file or directory
/dev/sdb Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MPU4K41X
/dev/sdc Model=WDC WD20EFRX-68EUZN0 , FwRev=82.00A82, SerialNo= WD-WCC4M8NXCNVA
/dev/sdd Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MHK4ESTN
[~] # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md1 : active raid5 sdf3[4] sdd3[0] sdb3[2] sdc3[1]
5830678848 blocks super 1.0 level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[========>............] recovery = 40.9% (795981056/1943559616) finish=184.4min speed=103666K/sec

md256 : active raid1 sdf2[3](S) sdb2[2](S) sdc2[1] sdd2[0]
530112 blocks super 1.0 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md13 : active raid1 sdf4[3] sdd4[0] sdb4[2] sdc4[1]
458880 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

md9 : active raid1 sdf1[3] sdd1[0] sdb1[2] sdc1[1]
530112 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

unused devices: <none>

Any ideas ?

[pwilson]

Hey,
From few days I have a problem with HDD4 in my NAS.
From some reason disk is failed, plugged out and i have to rebuild raid on it (disable application etc. to finish rebuild task).
Maybe anyone have an idea what to do with this case ?
In logs i have such events :

23,"Error","2014-11-26","13:25:31","System","127.0.0.1","localhost","Host: Drive4 plugged out."
22,"Error","2014-11-26","13:25:25","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
21,"Error","2014-11-26","13:25:10","System","127.0.0.1","localhost","Plugged drive failed to work."
20,"Information","2014-11-26","02:00:27","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Succeed to reclaim volume."
19,"Information","2014-11-26","02:00:01","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Start to reclaim volume."
18,"Information","2014-11-25","02:00:19","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Succeed to reclaim volume."
17,"Information","2014-11-25","02:00:01","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Start to reclaim volume."
16,"Information","2014-11-24","16:38:56","System","127.0.0.1","localhost"," [Pool 1] Rebuilding completed with RAID Group 1."
15,"Information","2014-11-24","09:29:56","System","127.0.0.1","localhost"," [Pool 1] Start rebuilding with RAID Group 1."
14,"Information","2014-11-24","09:26:37","System","127.0.0.1","localhost","Host: Drive4 plugged in."
13,"Information","2014-11-24","09:26:37","System","127.0.0.1","localhost"," [RAID Group 1] Degraded. Try to rebuild.
"
12"",""Warning"",""2014-11-24"",""09:26:37"",""System"",""127.0.0.1"",""localhost"","" [Pool 1] Rebuilding skipped with RAID Group 1."""
11,"Error","2014-11-24","09:26:36","System","127.0.0.1","localhost","Host: Drive4 plugged out."
10,"Error","2014-11-24","09:26:31","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
9,"Warning","2014-11-24","09:26:19","System","127.0.0.1","localhost","Host: Drive4 Write I/O error, ABORTED COMMAND sense_key=0xb, asc=0x0, ascq=0x0, CDB=2a 00 12 a8 70 88 00 00 80 00 ."
8,"Error","2014-11-24","09:26:19","System","127.0.0.1","localhost","Plugged drive failed to work."
7,"Information","2014-11-24","09:01:14","System","127.0.0.1","localhost"," [Pool 1] Start rebuilding with RAID Group 1."
6,"Information","2014-11-24","08:58:16","System","127.0.0.1","localhost","Host: Drive4 plugged in."
5,"Error","2014-11-24","08:58:10","System","127.0.0.1","localhost","Host: Drive4 plugged out."
4,"Error","2014-11-24","08:58:05","System","127.0.0.1","localhost","[Volume DataVol1, Pool 1] Host: Drive4 failed."
3,"Error","2014-11-24","08:57:53","System","127.0.0.1","localhost","Plugged drive failed to work."

I run also scrript from previous post :

echo "Firmware: $(getcfg system version) Build $(getcfg system 'Build Number')"
for i in {a..d}; do echo -n /dev/sd$i ; hdparm -i /dev/sd$i | grep "Model"; done
cat /proc/mdstat
mdadm -D /dev/md0

And I have such output :


[~] # echo "Firmware: $(getcfg system version) Build $(getcfg system 'Build Number')"
Firmware: 4.1.1 Build 20141101
[~] # for i in {a..d}; do echo -n /dev/sd$i ; hdparm -i /dev/sd$i | grep "Model"; done
/dev/sda/dev/sda: No such file or directory
/dev/sdb Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MPU4K41X
/dev/sdc Model=WDC WD20EFRX-68EUZN0 , FwRev=82.00A82, SerialNo= WD-WCC4M8NXCNVA
/dev/sdd Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MHK4ESTN
[~] # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md1 : active raid5 sdf3[4] sdd3[0] sdb3[2] sdc3[1]
5830678848 blocks super 1.0 level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[========>............] recovery = 40.9% (795981056/1943559616) finish=184.4min speed=103666K/sec

md256 : active raid1 sdf2[3](S) sdb2[2](S) sdc2[1] sdd2[0]
530112 blocks super 1.0 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md13 : active raid1 sdf4[3] sdd4[0] sdb4[2] sdc4[1]
458880 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

md9 : active raid1 sdf1[3] sdd1[0] sdb1[2] sdc1[1]
530112 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

unused devices: <none>

Any ideas ?

1. No NAS model provided. (Unless you can explain how you got 6 dtrives into a TS-470)
2. No drive Make/Model information provided.
3. Please review: When you're asking a question, please include the following

If you login to your NAS via SSH, login as "admin", and run the following commands, it will provide most of the "missing" information.

Code: Select all

#!/bin/sh
rm -f /tmp/nasreport
touch /tmp/nasreport
chmod +x /tmp/nasreport
cat <<EOF >>/tmp/nasreport
#!/bin/sh
#
# NAS Report by Patrick Wilson
# see: http://forum.qnap.com/viewtopic.php?f=185&t=82260#p366188
#
# 
echo "*********************"
echo "** QNAP NAS Report **"
echo "*********************"
echo " "
echo "NAS Model:      \$(getsysinfo model)"
echo "Firmware:       \$(getcfg system version) Build \$(getcfg system 'Build Number')"
echo "System Name:    \$(/bin/hostname)"
echo "Workgroup:      \$(getcfg system workgroup)"
echo "Base Directory: \$(dirname \$(getcfg -f /etc/config/smb.conf Public path))"
echo "NAS IP address: \$(ifconfig \$(getcfg network 'Default GW Device') | grep addr: | awk '{ print \$2 }' | cut -d: -f2)"
echo " " 
echo "Default Gateway Device: \$(getcfg network 'Default GW Device')" 
echo " "
ifconfig \$(getcfg network 'Default GW Device') | grep -v HWaddr
echo " "
echo -n "DNS Nameserver(s):" 
cat /etc/resolv.conf | grep nameserver | cut -d' ' -f2
echo " "
echo " "
echo "HDD Information:"
echo " "
if [ -x /sbin/hdparm ]; then
   for i in {a..f}; do echo -n /dev/sd\$i ; hdparm -i /dev/sd\$i | grep "Model"; done
else 
   echo "   /sbin/hdparm is not present" 
fi
echo " "
echo "Disk Space:"
echo " "
df -h | grep -v qpkg
echo " "
echo "Mount Status:" 
echo " "
mount | grep -v qpkg
echo " " 
echo "RAID Status:" 
echo " " 
cat /proc/mdstat
echo " " 
#echo "QNAP Media Scanner / Transcoder processes running: "
#echo " " 
#/bin/ps | grep medialibrary | grep -v grep
#echo " " 
#echo -n "MediaLibrary Configuration file: " 
#ls -alF /etc/config/medialibrary.conf
#echo " " 
#echo "/etc/config/medialibrary.conf:"
#cat /etc/config/medialibrary.conf
echo " "
echo "Memory Information:" 
echo " "
cat /proc/meminfo | grep Mem
echo " "
echo "NASReport completed on \$(date +'%Y-%m-%d %T') ($0)" 
EOF
sleep 2
clear
/tmp/nasreport
echo "Done." 
#done

Please cut&paste the output of the resulting NASReport back to this message thread. With this information in front of us, we might actually be able to assist you. I sure hope those Seagates aren't DL-series or DM-series not RAID-certified drives.

[grzyp]

[/] # #!/bin/sh
[/] # rm -f /tmp/nasreport
touch /tmp/nasreport
[/] # touch /tmp/nasreport
chmod +x /tmp/nasreport
cat <<EOF >>/tmp/nasreport
[/] # chmod +x /tmp/nasreport
#!/bin/sh
#
[/] # cat <<EOF >>/tmp/nasreport
> #!/bin/sh
> #
> # NAS Report by Patrick Wilson
> # see: http://forum.qnap.com/viewtopic.php?f=1 ... 60#p366188
> #
> #
> echo "*********************"
> echo "** QNAP NAS Report **"
> echo "*********************"
> echo " "
> echo "NAS Model: \$(getsysinfo model)"
> echo "Firmware: \$(getcfg system version) Build \$(getcfg system 'Build Number')"
> echo "System Name: \$(/bin/hostname)"
> echo "Workgroup: \$(getcfg system workgroup)"
> echo "Base Directory: \$(dirname \$(getcfg -f /etc/config/smb.conf Public path))"
> echo "NAS IP address: \$(ifconfig \$(getcfg network 'Default GW Device') | grep addr: | awk '{ print \$2 }' | cut -d: -f2)"
> echo " "
> echo "Default Gateway Device: \$(getcfg network 'Default GW Device')"
> echo " "
> ifconfig \$(getcfg network 'Default GW Device') | grep -v HWaddr
> echo " "
> echo -n "DNS Nameserver(s):"
> cat /etc/resolv.conf | grep nameserver | cut -d' ' -f2
> echo " "
> echo " "
> echo "HDD Information:"
> echo " "
> if [ -x /sbin/hdparm ]; then
> for i in {a..f}; do echo -n /dev/sd\$i ; hdparm -i /dev/sd\$i | grep "Model"; done
> else
> echo " /sbin/hdparm is not present"
> fi
> echo " "
> echo "Disk Space:"
> echo " "
> df -h | grep -v qpkg
> echo " "
> echo "Mount Status:"
> echo " "
> mount | grep -v qpkg
> echo " "
> echo "RAID Status:"
> echo " "
> cat /proc/mdstat
> echo " "
> #echo "QNAP Media Scanner / Transcoder processes running: "
> #echo " "
> #/bin/ps | grep medialibrary | grep -v grep
> #echo " "
> #echo -n "MediaLibrary Configuration file: "
> #ls -alF /etc/config/medialibrary.conf
> #echo " "
> #echo "/etc/config/medialibrary.conf:"
> #cat /etc/config/medialibrary.conf
> echo " "
> echo "Memory Information:"
> echo " "
> cat /proc/meminfo | grep Mem
> echo " "
> echo "NASReport completed on \$(date +'%Y-%m-%d %T') ($0)"
> EOF
[/] # sleep 2

[/] # clear
[/] # /tmp/nasreport
*********************
** QNAP NAS Report **
*********************

NAS Model: TS-470 Pro
Firmware: 4.1.1 Build 20141101
System Name: QNAP
Workgroup: WORKGROUP
Base Directory: /share/CACHEDEV1_DATA
NAS IP address: 192.168.2.222

Default Gateway Device: eth0

inet addr:192.168.2.222 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::208:9bff:fee5:3acc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6965619 errors:0 dropped:0 overruns:0 frame:0
TX packets:11692474 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1181284815 (1.0 GiB) TX bytes:14006737117 (13.0 GiB)


DNS Nameserver(s):192.168.2.1


HDD Information:

/dev/sda/dev/sda: No such file or directory
/dev/sdb Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MPU4K41X
/dev/sdc Model=WDC WD20EFRX-68EUZN0 , FwRev=82.00A82, SerialNo= WD-WCC4M8NXCNVA
/dev/sdd Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MHK4ESTN
/dev/sde Model= , FwRev=, SerialNo=910054FB4BCA3051
/dev/sdf Model=WDC WD20EFRX-68EUZN0 , FwRev=80.00A80, SerialNo= WD-WCC4MPU4K1RA

Disk Space:

Filesystem Size Used Available Use% Mounted on
/dev/ram0 151.1M 137.0M 14.1M 91% /
devtmpfs 1.4G 8.0k 1.4G 0% /dev
tmpfs 64.0M 392.0k 63.6M 1% /tmp
tmpfs 1.4G 28.0k 1.4G 0% /dev/shm
/dev/md9 509.5M 141.5M 368.0M 28% /mnt/HDA_ROOT
/dev/mapper/cachedev1 5.4T 1.9T 3.4T 36% /share/CACHEDEV1_DATA
/dev/md13 371.0M 281.8M 89.2M 76% /mnt/ext
tmpfs 32.0M 1.7M 30.3M 5% /.eaccelerator.tmp

Mount Status:

/proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /tmp type tmpfs (rw,size=64M)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/bus/usb type usbfs (rw)
/dev/md9 on /mnt/HDA_ROOT type ext3 (rw,data=ordered)
/dev/mapper/cachedev1 on /share/CACHEDEV1_DATA type ext4 (rw,usrjquota=aquota.user,jqfmt=vfsv0,user_xattr,data=ordered,delalloc,noacl)
/dev/md13 on /mnt/ext type ext3 (rw,data=ordered)
tmpfs on /.eaccelerator.tmp type tmpfs (rw,size=32M)

RAID Status:

Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md1 : active raid5 sdf3[4] sdd3[0] sdb3[2] sdc3[1]
5830678848 blocks super 1.0 level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[=>...................] recovery = 7.8% (152435328/1943559616) finish=5968.0min speed=5001K/sec

md256 : active raid1 sdf2[3](S) sdb2[2](S) sdc2[1] sdd2[0]
530112 blocks super 1.0 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md13 : active raid1 sdf4[3] sdd4[0] sdb4[2] sdc4[1]
458880 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

md9 : active raid1 sdf1[3] sdd1[0] sdb1[2] sdc1[1]
530112 blocks super 1.0 [24/4] [UUUU____________________]
bitmap: 1/1 pages [4KB], 65536KB chunk

unused devices: <none>


Memory Information:

MemTotal: 2907420 kB
MemFree: 335812 kB

NASReport completed on 2014-11-26 21:01:43 (-sh)
[/] # echo "Done."
Done.

[pwilson]

Code: Select all

*********************
** QNAP NAS Report **
*********************

NAS Model:      TS-470 Pro
Firmware:       4.1.1 Build 20141101
System Name:    QNAP
Workgroup:      WORKGROUP
Base Directory: /share/CACHEDEV1_DATA
NAS IP address: 192.168.2.222

Default Gateway Device: eth0

          inet addr:192.168.2.222  Bcast:192.168.2.255  Mask:255.255.255.0
          inet6 addr: fe80::208:9bff:fee5:3acc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6965619 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11692474 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1181284815 (1.0 GiB)  TX bytes:14006737117 (13.0 GiB)


DNS Nameserver(s):192.168.2.1


HDD Information:

/dev/sda/dev/sda: No such file or directory
/dev/sdb Model=WDC WD20EFRX-68EUZN0                    , FwRev=80.00A80, SerialNo=     WD-WCC4MPU4K41X
/dev/sdc Model=WDC WD20EFRX-68EUZN0                    , FwRev=82.00A82, SerialNo=     WD-WCC4M8NXCNVA
/dev/sdd Model=WDC WD20EFRX-68EUZN0                    , FwRev=80.00A80, SerialNo=     WD-WCC4MHK4ESTN
/dev/sde Model=        , FwRev=, SerialNo=910054FB4BCA3051
/dev/sdf Model=WDC WD20EFRX-68EUZN0                    , FwRev=80.00A80, SerialNo=     WD-WCC4MPU4K1RA

Disk Space:

Filesystem                Size      Used Available Use% Mounted on
/dev/ram0               151.1M    137.0M     14.1M  91% /
devtmpfs                  1.4G      8.0k      1.4G   0% /dev
tmpfs                    64.0M    392.0k     63.6M   1% /tmp
tmpfs                     1.4G     28.0k      1.4G   0% /dev/shm
/dev/md9                509.5M    141.5M    368.0M  28% /mnt/HDA_ROOT
/dev/mapper/cachedev1     5.4T      1.9T      3.4T  36% /share/CACHEDEV1_DATA
/dev/md13               371.0M    281.8M     89.2M  76% /mnt/ext
tmpfs                    32.0M      1.7M     30.3M   5% /.eaccelerator.tmp

Mount Status:

/proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /tmp type tmpfs (rw,size=64M)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/bus/usb type usbfs (rw)
/dev/md9 on /mnt/HDA_ROOT type ext3 (rw,data=ordered)
/dev/mapper/cachedev1 on /share/CACHEDEV1_DATA type ext4 (rw,usrjquota=aquota.user,jqfmt=vfsv0,user_xattr,data=ordered,delalloc,noacl)
/dev/md13 on /mnt/ext type ext3 (rw,data=ordered)
tmpfs on /.eaccelerator.tmp type tmpfs (rw,size=32M)

RAID Status:

Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md1 : active raid5 sdf3[4] sdd3[0] sdb3[2] sdc3[1]
                 5830678848 blocks super 1.0 level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
                 [=>...................]  recovery =  7.8% (152435328/1943559616) finish=5968.0min speed=5001K/sec

md256 : active raid1 sdf2[3](S) sdb2[2](S) sdc2[1] sdd2[0]
                 530112 blocks super 1.0 [2/2] [UU]
                 bitmap: 0/1 pages [0KB], 65536KB chunk

md13 : active raid1 sdf4[3] sdd4[0] sdb4[2] sdc4[1]
                 458880 blocks super 1.0 [24/4] [UUUU____________________]
                 bitmap: 1/1 pages [4KB], 65536KB chunk

md9 : active raid1 sdf1[3] sdd1[0] sdb1[2] sdc1[1]
                 530112 blocks super 1.0 [24/4] [UUUU____________________]
                 bitmap: 1/1 pages [4KB], 65536KB chunk

unused devices: <none>


Memory Information:

MemTotal:        2907420 kB
MemFree:          335812 kB

NASReport completed on 2014-11-26 21:01:43 (-sh)

I only wanted the report output. Thank-you for providing it. Your NAS is indeed a TS-470. Your initial message was hard to interpret because it showed /dev/sdf as being present, which would be "HDD6" on a TS-670 for example).

Your HDD1 (/dev/sda) is not showing up., yet somehow the NAS is trying to add /dev/sdf (HDD6) to your RAID5 array. There is something wrong here, and resolving this issue has the potential for data loss. Please submit a ticket with the QNAP Helpdesk, and provide them with remote access to your NAS so that they can manually rebuild your RAID5 array for you.