Hi everyone, and thx for those who will be able to help

Last week i had some troubles with my NAS. It looked like some troubles with the RAID, so i changed the RAID controller, and i also had 2 degraded disk on my RAID6 volume, that i changed.

I started to rebuild them, but couldnt pass 51% cause of ECC-errors on a 3rd disk, so i added the option to ignore those errors.

Then the rebuild worked.

Now when im booting, i'm getting this error :
ERROR: No system volume found! System services can't work without system volume !

my RAID seems working :
//dssA0019718> info c7

Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 RAID-6 OK - - 256K 18626.3 RiW OFF

VPort Status Unit Size Type Phy Encl-Slot Model
------------------------------------------------------------------------------
p8 OK u0 1.82 TB SATA - /c7/e0/slt0 ST32000644NS
p9 OK u0 1.82 TB SATA - /c7/e0/slt1 ST32000644NS
p10 OK u0 1.82 TB SATA - /c7/e0/slt2 ST2000NM0033-9ZM175
p11 OK u0 1.82 TB SATA - /c7/e0/slt3 ST32000644NS
p12 OK u0 1.82 TB SATA - /c7/e0/slt4 ST32000644NS
p13 OK u0 1.82 TB SATA - /c7/e0/slt5 ST32000644NS
p14 OK u0 1.82 TB SATA - /c7/e0/slt6 ST2000NM0033-9ZM175
p15 OK u0 1.82 TB SATA - /c7/e0/slt7 ST32000644NS
p16 OK u0 1.82 TB SATA - /c7/e0/slt8 ST32000644NS
p17 OK u0 1.82 TB SATA - /c7/e0/slt9 ST32000644NS
p18 OK u0 1.82 TB SATA - /c7/e0/slt10 ST32000644NS
p19 OK u0 1.82 TB SATA - /c7/e0/slt11 ST32000644NS


if i try to repair the FS (CAX + repair filesystem on LV, i get this message
/var/nasexe/admintools: line 714: /sbin/xfs_repair: No such file or directory
/var/nasexe/admintools: line 715: /sbin/xfs_repair: No such file or directory
fsck 1.41.11 (14-Mar-2010)
/dev/vg+vg00/config: clean, 11/8192 files, 5547/32768 blocks (check in 4 mounts)
fsck 1.41.11 (14-Mar-2010)
e2fsck 1.41.11 (14-Mar-2010)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/mapper/system_crypt+d64wh5-RzGA-22jV-H52k-Lreo-ZTDW-23ACIl: 872/262144 files (24.0% non-contiguous), 29108/1048576 blocks

Hit ENTER for reboot

but after reboot, nothing changed.

Are my datas lost ?

thanks for any help !