just reproduced this on a 18GB SCSI disk. mount is still slow. so not related to RAID but only with bitmap. i just do modprobe aic7xxx, mkfs, then do mount, so the disk should be spin up.
ming -------------------------------------- [EMAIL PROTECTED] root]# time mkfs.reiserfs -ff /dev/sdh1 mkfs.reiserfs 3.6.13 (2003 www.namesys.com) ... Guessing about desired format.. Kernel 2.6.12.4 is running. Format 3.6 with standard journal Count of blocks on the device: 4421872 Number of blocks consumed by mkreiserfs formatting process: 8346 Blocksize: 4096 Hash function used to sort names: "r5" Journal Size 8193 blocks (first block 18) Journal Max transaction length 1024 inode generation number: 0 UUID: b3de310a-b494-4415-a921-090d94f2f211 Initializing journal - 0%....20%....40%....60%....80%....100% Syncing..ok Tell your friends to use a kernel based on 2.4.18 or later, and especially not a kernel based on 2.4.9, when you use reiserFS. Have fun. ReiserFS is successfully created on /dev/sdh1. real 0m5.018s user 0m0.028s sys 0m0.134s [EMAIL PROTECTED] root]# time mount /dev/sdh1 t real 1m3.608s user 0m0.000s sys 0m0.052s [EMAIL PROTECTED] root]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda5 20161172 6417940 12719092 34% / /dev/sda3 194449 18990 165419 11% /boot none 127544 0 127544 0% /dev/shm /dev/sdh1 17686944 32840 17654104 1% /root/t [EMAIL PROTECTED] root]# rpm -q reiserfs-utils reiserfs-utils-3.6.13-1 On Fri, 2005-08-26 at 21:04 +0400, Vladimir V. Saveliev wrote: > Hello > > Ming Zhang wrote: > > Hi, folks > > > > I am not sure if this is normal or not. > > > > I try to create&use a reiserfs on a 8 disk raid0. Then I found that mkfs > > need ~90 sec and mount need ~70 seconds. > > > > Is there anything wrong on my side? > > > > Your device is too big. > > > Thanks! > > > > > > Ming > > > > > > > > Detailed info followed. > > --------------------------------------------------------------------- > > [EMAIL PROTECTED] root]# cat /proc/mdstat > > Personalities : [linear] [raid0] [raid1] [raid5] [multipath] [raid6] > > [raid10] [faulty] > > md0 : active raid0 sda[0] sdh[7] sdg[6] sdf[5] sde[4] sdd[3] sdc[2] sdb > > [1] > > 3125690368 blocks 64k chunks > > > > unused devices: <none> > > > > [EMAIL PROTECTED] root]# time mkfs.reiserfs /dev/md0 -ff > > mkfs.reiserfs 3.6.13 (2003 www.namesys.com) > > > > <...> > > > > Guessing about desired format.. Kernel 2.6.11.12 is running. > > Format 3.6 with standard journal > > Count of blocks on the device: 781422592 > > Number of blocks consumed by mkreiserfs formatting process: 32059 > > Blocksize: 4096 > > Hash function used to sort names: "r5" > > Journal Size 8193 blocks (first block 18) > > Journal Max transaction length 1024 > > inode generation number: 0 > > UUID: 98d990f3-d54f-43e3-9fde-8c9c9a6d3481 > > Initializing journal - 0%....20%....40%....60%....80%....100% > > Syncing..ok > > > > Tell your friends to use a kernel based on 2.4.18 or later, and > > especially not a > > kernel based on 2.4.9, when you use reiserFS. Have fun. > > > > ReiserFS is successfully created on /dev/md0. > > > > real 1m28.783s > > user 0m0.151s > > sys 0m0.398s > > > > Hmm, mkfs.reiserfs had to write 32059 blocks. It is about 131mb. 1m28s is too > much for that. > Could it be that some of disks used in that raid were not spinning when you > started mkreiserfs? > > > [EMAIL PROTECTED] root]# time mount /dev/md0 t > > > > real 1m11.448s > > user 0m0.000s > > sys 0m0.225s > > > > There is a patch to cure this problem. > http://www.mail-archive.com/[email protected]/msg18442.html > Please note that it is experimental one. > > > > > > > >
