Bootup Error

Hello,

I am getting these errors when booting. It let's me CTRL D through them, but I am worried about the intergrity of my data and the stability of the machine. Would someone be able to help point me in the right direction? Is one of my HDDs about to go? I see sdc mentioned a lot.

As a note, this is one drive in an LVM.

Jul 19 07:35:03 ElServer rsyslogd: [origin software="rsyslogd" swVersion="5.8.11" x-pid="9836" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
Jul 19 07:35:05 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:36:07 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:37:09 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:38:10 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:39:01 ElServer /USR/SBIN/CRON[15508]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))
Jul 19 07:39:13 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:40:15 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:40:38 ElServer kernel: [574901.824669] end_request: I/O error, dev sdc, sector 0
Jul 19 07:40:50 ElServer kernel: [574913.808571] end_request: I/O error, dev sdc, sector 0
Jul 19 07:41:08 ElServer kernel: [574931.824310] end_request: I/O error, dev sdc, sector 0
Jul 19 07:41:17 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:41:23 ElServer kernel: [574946.800308] end_request: I/O error, dev sdc, sector 0
Jul 19 07:42:19 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:43:21 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:44:23 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:45:01 ElServer /USR/SBIN/CRON[15545]: (root) CMD (/usr/sbin/omv-mkgraph >/dev/null 2>&1)
Jul 19 07:45:01 ElServer rrdcached[3504]: Received FLUSHALL
Jul 19 07:45:25 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:46:27 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:47:19 ElServer kernel: [575302.800630] end_request: I/O error, dev sdc, sector 0
Jul 19 07:47:30 ElServer ool openmediavault-webgui: Unknown or unsupported timezone [tz=US/Eastern]
Jul 19 07:47:49 ElServer kernel: [575332.800301] end_request: I/O error, dev sdc, sector 0
Jul 19 07:47:53 ElServer kernel: [575337.736250] sd 4:0:0:0: [sdc] Unhandled error code
Jul 19 07:47:53 ElServer kernel: [575337.736261] sd 4:0:0:0: [sdc] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Jul 19 07:47:53 ElServer kernel: [575337.736273] sd 4:0:0:0: [sdc] CDB: Write(10): 2a 00 89 43 0f 38 00 00 08 00
Jul 19 07:47:53 ElServer kernel: [575337.736295] end_request: I/O error, dev sdc, sector 2302873400

Thank you for your reply guys. If the drive sdc has failed, which I think is the issue, how would I go about replacing it in the lvm?

I do have the free space. I have roughly 4tb empty and the failing drive is 3 Tb.

For sure it's ugly, but at least I still have all my data. Worst case I'll build a whole new array and copy the data over.

Let me ask you this, what do you use/recommend? And if you were in my situation what would you do?