search for: speed_limit_max

Dear all, I'm not used to handling software raid. I've inherited a server which has raid 10 set. one of our disks failed, and it's to be replaced today. My question is; any hint how to add this new disk to the existing raid array ? first thought is :- Create identical partitions as other disks in the array i'd like to add it to.- add it to raid. Though i'm extremely worried of

Is my new 300GB RAID 1 array REALLY going to take 18936 minutes to sync!!???

I have configured 2x 500G sata HDD as Software RAID1 with three partitions md0,md1 and md2 with md2 as 400+ gigs Now it is almost 36 hours the status is cat /proc/mdstat Personalities : [raid1] md0 : active raid1 hdb1[1] hda1[0] 104320 blocks [2/2] [UU] resync=DELAYED md1 : active raid1 hdb2[1] hda2[0] 4096448 blocks [2/2] [UU] resync=DELAYED md2 : active raid1

I have a 750Gb 3-member software raid1 where 2 partitions are always present and the third is regularly rotated and re-synced (SATA disks in hot-swap bays). The timing of the resync seems to be extremely variable recently, taking anywhere from 3 to 10 hours even if the partition is unmounted and the drives aren't doing anything else and regardless of what I echo into

Hi, Has anyone had any experience with Intel Vroc[1]? I'm possibly having to deal with a new server with such technology and can't find much (real world) information about it. Looking at the specs it's basically a glorified fake raid which usually turns on my alarm bells. Has anyone done any testing, how does it compare with "real" raid or software raid? Cheers, Lucian [1]

Hello, since weeks I was ignoring this warning at my CentOS 5.6/64 bit machine - /etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md0 in the hope that the software RAID will slowly repair itself. I also had executed "echo 100000 > /proc/sys/dev/raid/speed_limit_max" on the advice from the mailing list. But now my web server is offline - I had to boot it remotely with rescue system. Does anybody please have an advice what commands to run and do you think it is a RAID problem at all? # dmesg Linux version 2.6.34 (root at imagemaster30) (gcc version 4.3....

...39;re seeing is that when the weekly raid-check script executes, performance nose dives, and I/O wait skyrockets. The raid check starts out fairly fast (20000K/sec - the limit that's been set), but then quickly drops down to about 4000K/Sec. dev.raid.speed sysctls are at the defaults: dev.raid.speed_limit_max = 200000 dev.raid.speed_limit_min = 1000 Here's 10 seconds of iostat output, which illustrates the issue: [root at r1k1log] # iostat 1 10 Linux 3.10.0-327.18.2.el7.x86_64 (r1k1) ? ?05/24/16 ? ?_x86_64_? ?(32 CPU) avg-cpu:? %user? ?%nice %system %iowait? %steal? ?%idle ? ? ? ? ? ?8.80? ? 0.0...

Hello, yesterday night I had a problem with my server located at a hoster (strato.de). I couldn't ssh to it and over the remote serial console I saw "out of memory" errors (sorry, don't have the text). Then I had reinstall CentOS 5.5/64 bit + all my setup (2h work), because I have a contract with a social network and they will shut down my little card game if it is not