Hello guys Today i saw my ocfs2 start working amazing slow i don`t know what happened but looks like problem... i can get max 200kb/s..... MAILDIR1 ~ # cat /proc/mounts /dev/mapper/mpath1 /mnt/EMC ocfs2 rw,noatime,_netdev,heartbeat=local,nointr,data=writeback,errors=remount-ro,commit=30,localalloc=23,usrquota,coherency=full,user_xattr,acl 0 0 MAILDIR1 ~ # debugfs.ocfs2 -R "stats" /dev/dm-0 Revision: 0.90 Mount Count: 0 Max Mount Count: 20 State: 0 Errors: 0 Check Interval: 0 Last Check: Sun Feb 24 19:33:26 2013 Creator OS: 0 Feature Compat: 3 backup-super strict-journal-super Feature Incompat: 16208 sparse extended-slotmap inline-data metaecc xattr indexed-dirs refcount discontig-bg Tunefs Incomplete: 0 Feature RO compat: 7 unwritten usrquota grpquota Root Blknum: 5 System Dir Blknum: 6 First Cluster Group Blknum: 3 Block Size Bits: 12 Cluster Size Bits: 12 Max Node Slots: 16 Extended Attributes Inline Size: 256 Label: MAILDIR UUID: A7398EDB6A964EFBB3A316E690A48E3B Hash: 1702791194 (0x657e881a) DX Seed[0]: 0x8a032eea DX Seed[1]: 0xa6c80977 DX Seed[2]: 0xef570dd3 Cluster stack: classic o2cb Inode: 2 Mode: 00 Generation: 2353752938 (0x8c4b6b6a) FS Generation: 2353752938 (0x8c4b6b6a) CRC32: de585fe0 ECC: 048d Type: Unknown Attr: 0x0 Flags: Valid System Superblock Dynamic Features: (0x0) User: 0 (root) Group: 0 (root) Size: 0 Links: 0 Clusters: 422137056 ctime: 0x4f928b86 -- Sat Apr 21 12:27:18 2012 atime: 0x0 -- Thu Jan 1 01:00:00 1970 mtime: 0x4f928b86 -- Sat Apr 21 12:27:18 2012 dtime: 0x0 -- Thu Jan 1 01:00:00 1970 ctime_nsec: 0x00000000 -- 0 atime_nsec: 0x00000000 -- 0 mtime_nsec: 0x00000000 -- 0 Refcount Block: 0 Last Extblk: 0 Orphan Slot: 0 Sub Alloc Slot: Global Sub Alloc Bit: 65535 MAILDIR1 ~ # hdparm -tT /dev/dm-0 /dev/dm-0: Timing cached reads: 17094 MB in 2.00 seconds = 8555.65 MB/sec Timing buffered disk reads: 706 MB in 3.00 seconds = 435.22 MB/sec But when i try copy anything to this ocfs2 got max 200kb/s Anyone know what is wrong? Thanks