Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
>the cisco switches between the two hosts don't allow that. Is it worth the >trouble with the network admins or does it explain the very slow drbd >performance with recent kernel versions? Try to crossover the link between the two host and do $ ifconfig eth0 MTU 6000 >The trouble is that I don't see any error messages. With other similiar drbd >setups ( drbd 0.7.17 SVN Revision: 2125M and kernel 2.6.16.11 ) on different >hosts I don't see that kind problems. There I got with the same network setup a >speed of approx. 80MB/sec when writing data with dd to the disk. Please check where's the bottleneck (scsi devices,etc) Kernel version should not be a problem with this. thanks, francism FingerPrint:3082 0CB4 0609 2A86 4886 F70D 0107 02A0 ----- Original Message ----- From: "Torsten Neumann" <torsten.neumann at dlh.de> To: <drbd-user at lists.linbit.com> Sent: Monday, May 08, 2006 3:28 PM Subject: [DRBD-user] Re: strange performance problems with drbd Francis I. Malolot <francis_m at ...> writes: > > please increase your MTU and feel the power of DRBD. > here we can pump at 125MB.... > the cisco switches between the two hosts don't allow that. Is it worth the trouble with the network admins or does it explain the very slow drbd performance with recent kernel versions? The trouble is that I don't see any error messages. With other similiar drbd setups ( drbd 0.7.17 SVN Revision: 2125M and kernel 2.6.16.11 ) on different hosts I don't see that kind problems. There I got with the same network setup a speed of approx. 80MB/sec when writing data with dd to the disk. Regards, Torsten > thanks, > francism _______________________________________________ drbd-user mailing list drbd-user at lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.