Hi, Maybe you could give some info on : > - your ext3 mkfs and mount options (journal, barriers, etc) > /etc/fstab details below: LABEL=/var/lib/pgsql /var/lib/pgsql ext3 defaults 1 2 LABEL=/tablespace1 /tablespace1 ext3 defaults 1 2 LABEL=/tablespace2 /tablespace2 ext3 defaults 1 2 LABEL=/tablespace3 /tablespace3 ext3 defaults 1 2 pg_default:
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 36634624 Block count: 146506767 Reserved block count: 7325338 Free blocks: 143785740 Free inodes: 36627866 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 989 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 RAID stride: 64 RAID stripe width: 64 Filesystem created: Fri Aug 9 16:11:53 2013 Last mount time: Fri Apr 21 22:37:02 2017 Last write time: Fri Apr 21 22:37:02 2017 Mount count: 2 Maximum mount count: 100 Last checked: Thu Sep 15 18:52:43 2016 Check interval: 31536000 (12 months, 5 days) Next check after: Fri Sep 15 18:52:43 2017 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Journal backup: inode blocks tablespaces Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 73261056 Block count: 293013543 Reserved block count: 14650677 Free blocks: 286208439 Free inodes: 73174728 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 954 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 RAID stride: 64 RAID stripe width: 128 Filesystem created: Fri Aug 9 16:11:53 2013 Last mount time: Fri Apr 21 22:37:02 2017 Last write time: Fri Apr 21 22:37:02 2017 Mount count: 2 Maximum mount count: 100 Last checked: Thu Sep 15 18:52:43 2016 Check interval: 31536000 (12 months, 5 days) Next check after: Fri Sep 15 18:52:43 2017 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Journal backup: inode blocks > - your controller setup (battery should be working good and cache mode set > to write back) > Cache Board Present: True Cache Status: OK Cache Ratio: 10% Read / 90% Write Drive Write Cache: Disabled Total Cache Size: 2.0 GB Total Cache Memory Available: 1.8 GB No-Battery Write Cache: Disabled SSD Caching RAID5 WriteBack Enabled: False SSD Caching Version: 1 Cache Backup Power Source: Capacitors Battery/Capacitor Count: 1 Battery/Capacitor Status: OK > - your disks setup (write cache should be disabled) > Write cache is disabled, see above. > - you should check your syslogs/messages for any errors related to storage > No error messages found. > - is your RAM ECC? Did you run any memtest? > Yes, memory is ECC. No error messages found. > - is your CPU overheating ? > No overheating issues. > - have you experienced any crashes/freezes ? > No crashes/freezes experienced. Best wishes, Harry