I'm seeing this on a Suse Sles10 x86_64 system, 2.6.16.60-0.34-smp. I have a qlogic qle2462 connected to a hp eva back end. -----Original Message----- From: dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] On Behalf Of guy keren Sent: Monday, March 15, 2010 4:15 PM To: device-mapper development Subject: Re: max number of paths Charlie Sharkey wrote: > > > Is there a maximum number of paths supported by the device mapper ? > > I have a setup with 12 paths to 14 luns. I had to reduce the number of paths > > to 10 for the device mapper to startup correctly. i have seen such problems with linux kernel 2.4, long ago, when max SCSI disk devices was 256 (and hence - also max paths for such devices). if you're not using SCSI, but rather some other type of device - it could be a limitation of the specific low level driver. which kernel are you using? and which linux distribution? and what kind of block devices do your disks reside on? --guy -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
