What does this mean?

na3m-be> vol status Volume State Status Options vol0 online normal root vol1 offline partial na3m-be> vol status vol1 Volume State Status Options vol1 offline partial raid group 0: partial

from the log file:

Mon Feb 3 17:26:52 EST [kern.syslog.msg:CRITICAL]: Volume vol1 is missing 5 disks from RAID group 0 and is being taken offline for this boot. Mon Feb 3 17:26:53 EST [raid.assim.outofdateNdisks:ALERT]: More than one disk in RAID group 0 of volume vol1 has a valid label not consistent with all the others. These disks are assumed to be out of date; their contents cannot be restored. Mon Feb 3 17:26:53 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.32 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:53 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.37 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:53 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.6 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:53 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.24 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.25 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.30 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.11 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.33 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.27 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.3 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.16 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:54 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.29 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.35 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.28 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.36 originally belonging to volume vol1, RAID group 2 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.9 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.18 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.2 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.5 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:55 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.10 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.14 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.17 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.0 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.1 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.19 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.54 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.20 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:56 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.12 originally belonging to volume vol1, RAID group 1 Mon Feb 3 17:26:57 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.52 originally belonging to volume vol1, RAID group 0 Mon Feb 3 17:26:57 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.4 originally belonging to volume vol1, RAID group 0 Mon Feb 3 17:26:57 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.44 originally belonging to volume vol1, RAID group 0 Mon Feb 3 17:26:57 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.45 originally belonging to volume vol1, RAID group 0 Mon Feb 3 17:26:57 EST [kern.syslog.msg:error]: There is an out-of-date disk 4.38 originally belonging to volume vol1, RAID group 0

Any help would be really appreciated.

Thanks Dan