* Eric Sandeen <sandeen@xxxxxxxxxx>: > >> It'd be better to get to the bottom of the problem ... maybe iostat > >> while it's happening to see if IO is actually happening; run blktrace to > >> see where IO is going, do a few sysrq-t's to see where threads are at, etc. > > > > We had 24GB of reading from the journal device (or 12GB if it's > > 512byte blocks). I wonder why? > > 24GB of reading from the journal device (during that 800s of replay > during mount?), and your journal is 128M ... well that's odd. After my initial report I removed the journal and created an external journal on a 32GB partition. Hoping it would be faster, since accoriding to the docs. the journal size is limited to 128MB. > You say journal device; is this an external journal? I didn't think so > from your first email, but is it? It is now. # dumpe2fs -h /dev/cciss/c0d0p6 dumpe2fs 1.41.3 (12-Oct-2008) Filesystem volume name: journal_device Last mounted on: <not available> Filesystem UUID: 1a7063f5-8965-40f2-9feb-e37d6ac467e9 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: journal_dev Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 0 Block count: 8488436 Reserved block count: 0 Free blocks: 0 Free inodes: 0 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 0 Inode blocks per group: 0 Filesystem created: Thu Feb 5 14:05:36 2009 Last mount time: n/a Last write time: Thu Feb 5 14:15:26 2009 Mount count: 0 Maximum mount count: 30 Last checked: Thu Feb 5 14:05:36 2009 Check interval: 15552000 (6 months) Next check after: Tue Aug 4 15:05:36 2009 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 Default directory hash: half_md4 Directory Hash Seed: fddb247a-97df-4582-bfcd-816ef8c17ab2 Journal block size: 4096 Journal length: 8488436 Journal first block: 2 Journal sequence: 0x0027c611 Journal start: 2 Journal number of users: 1 Journal users: 032613d3-6035-4872-bc0a-11db92feec5e -- Ralf Hildebrandt Ralf.Hildebrandt@xxxxxxxxxx Charite - Universitätsmedizin Berlin Tel. +49 (0)30-450 570-155 Geschäftsbereich IT | Abt. Netzwerk Fax. +49 (0)30-450 570-962 Hindenburgdamm 30 | 12200 Berlin _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
