RE: Long checkpoint woe

SUN-SOL 5.8: # time dd if=/dev/rdsk/c0t8d0s0 of=/csg/test.out bs=2k co> 10240+0 records in 10240+0 records out real 0m4.90s user 0m0.06s sys 0m1.59s SUN-SOL 5.10 # time dd if=/dev/rdsk/c0t8d0s1 of=/space/test.out bs=2k count=10240 10240+0 records in 10240+0 records out real 4.3 user 0.0 sys 1.1 Basim Chafik Senior Systems Analyst IBM Certified Advanced Technical Expert (CATE) 1.800.688.4895 basim.chafik@plx.com plexus (Division of BancTec) -----Original Message----- From: Neil Truby [mailto:neil.truby@ardenta.com] Sent: Thursday, March 30, 2006 10:31 PM To: informix-list@iiug.org Subject: Re: Long checkpoint woe "Nog" <noel@gfm.co.uk> wrote in message news:1143751527.646087.192390@e56g2000cwe.googlegroups.com... > Are both primary and secondary raided the same way? are these the > machines that are miles apart? The 3310 are directly attached (scsi?) > aren't they? The live one is exclusively RAID 1+0. The DR/DEV one has a mixture of RAID 1+0 and RAID 0. But the dd output is the same whether I use a mirrored logical volume, unmirrored LV, write directly to a device on the external array or write directly to one of the internal disks. I've raised a case with Sun. My hunch is they will come back and say it's expected behaviour, which is why i'd like anyone else with a Solaris SPARC box to so this: # time dd if=/dev/md/rdsk/d121 of=/dev/rdsk/c1t1d0s7 bs=2k 10240+0 records in 10240+0 records out real 1m1.85s user 0m0.03s sys 0m0.74s and let me know what they get, Thanks, Neil _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list