Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Jan 26, 2004, at 4:26 PM, Lars Ellenberg wrote: > / 2004-01-26 15:48:14 -0600 > \ dave at gottathink.com: >> Quoting Lars Ellenberg <Lars.Ellenberg at linbit.com>: >> >>> / 2004-01-25 23:38:08 -0800 >>> \ Dave Dunkin: >>>> I've got drbd set up on two RedHat 9 nodes with 60GB software RAID1 >>>> devices I'm trying to mirror. I started it up for the first time >>>> and it >>>> started with a SyncAll from the primary to the secondary at around >>>> 10MB/sec (on a private 100Mbps network). Then at almost exactly 30% >>>> though the sync, the sync speed dropped to an abysmal 500KB/sec. >>>> I've >>>> tried upping the minimum and setting the nice level, but nothing >>>> seems >>>> to improve the situation. I tried stopping and restarting the sync >>>> process and the same thing happened at 30%. >>> >>> you are sure that your /dev/md is not rebuilding at the same time? >>> >> >> /dev/md is not rebuilding. > > ? .... ? > input? > > please provide more information, otherwise all we can do is guess. > type and size of the lower level devices of your md, syslog, > whatever seems remotely relevant... > Sorry, I don't really know what to look for. Both of the nodes are identical dual P3 550MHz, 1GB RAM. Kernel 2.4.20-28.9smp, drbd 0.6.10. The md device I'm using is 62.4GB software RAID1 of two identical IDE drives. The rest of the system partitions also live on these drives. I did just notice that I inadvertently put both drives on the same IDE channel. The system is nearly idle while it still syncs at <500KB/s 20 hours later. Here's what vmstat has to say: procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 0 0 0 0 706072 90144 91012 0 0 223 20 185 159 0 2 98 thanks, Dave Dunkin Software Architect Gottathink, LLC www.gottathink.com