> > ----- Ursprüngliche Mail ----- > > > Von: "Johan Kragsterman" <johan.kragster...@capvert.se> > > > An: "Stephan Budach" <stephan.bud...@jvm.de> > > > CC: omnios-discuss@lists.omniti.com > > > Gesendet: Donnerstag, 7. September 2017 12:08:45 > > > Betreff: Ang: [OmniOS-discuss] COMSTAR and blocksizes > > > > > > > > > Hi! > > > > > > -----"OmniOS-discuss" <omnios-discuss-boun...@lists.omniti.com> > > > skrev: ----- > > > Till: omnios-discuss@lists.omniti.com > > > Från: Stephan Budach > > > Sänt av: "OmniOS-discuss" > > > Datum: 2017-09-07 10:38 > > > Ärende: [OmniOS-discuss] COMSTAR and blocksizes > > > > > > Hi, > > > > > > I am having trouble getting an issue sorted out, where omniOS > > > 151020 > > > complaints about mismatched blocksizes on some COMSTAR iSCSI > > > LUNS, > > > like this: > > > > > > Sep 7 08:52:07 zfsha02gh79 104 I/O requests are not aligned > > > with > > > 8192 disk sector size in 10 seconds. They are handled through > > > Read > > > Modify Write but the performance is very low! > > > Sep 7 08:52:07 zfsha02gh79 scsi: [ID 107833 kern.warning] > > > WARNING: > > > /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3033 (sd94): > > > Sep 7 08:52:07 zfsha02gh79 79 I/O requests are not aligned > > > with > > > 8192 disk sector size in 10 seconds. They are handled through > > > Read > > > Modify Write but the performance is very low! > > > Sep 7 08:52:16 zfsha02gh79 scsi: [ID 107833 kern.warning] > > > WARNING: > > > /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3132 (sd88): > > > Sep 7 08:52:16 zfsha02gh79 20 I/O requests are not aligned > > > with > > > 8192 disk sector size in 10 seconds. They are handled through > > > Read > > > Modify Write but the performance is very low! > > > Sep 7 08:52:17 zfsha02gh79 scsi: [ID 107833 kern.warning] > > > WARNING: > > > /scsi_vhci/disk@g600144f0564d504f4f4c3038534c3033 (sd110): > > > Sep 7 08:52:17 zfsha02gh79 1 I/O requests are not aligned > > > with > > > 8192 disk sector size in 10 seconds. They are handled through > > > Read > > > Modify Write but the performance is very low! > > > Sep 7 08:52:17 zfsha02gh79 scsi: [ID 107833 kern.warning] > > > WARNING: > > > /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3033 (sd94): > > > Sep 7 08:52:17 zfsha02gh79 24 I/O requests are not aligned > > > with > > > 8192 disk sector size in 10 seconds. They are handled through > > > Read > > > Modify Write but the performance is very low! > > > > > > These COMSTAR LUNs are configured to export a blocksize 8k like > > > this: > > > > > > LU Name: 600144F0564D504F4F4C3037534C3132 > > > Operational Status: Online > > > Provider Name : sbd > > > Alias : nfsvmpool07Slot12 > > > View Entry Count : 1 > > > Data File : /dev/rdsk/c3t50015178F364A264d0p1 > > > Meta File : not set > > > Size : 200042414080 > > > Block Size : 8192 > > > Management URL : not set > > > Vendor ID : SUN > > > Product ID : COMSTAR > > > Serial Num : not set > > > Write Protect : Disabled > > > Writeback Cache : Enabled > > > Access State : Active > > > > > > Now, the system seems to recognize the 8k, but for whatever > > > reason, > > > doesn't adjust the block size accordingly. It does that for the > > > 4k > > > LUNs, however, so I am unsure, on how to tackle this? Any tipp, > > > anyone could share? > > > > > > Thanks, > > > Stephan > > > > > > > > > > > > > > > > > > > > > What's in the bottom here? > > > > > > Data File : /dev/rdsk/c3t50015178F364A264d0p1 > > > > > > It dosesn't look like a zvol? > > > > > > /Johan > > > > It isn't one - it's a raw partition, an Intel SSD in this case. > > > > Cheers, > > Stephan > > > > Hi all, > > I just exported this zpool from my omniOS 020 and imported it on a > recent oi box and the issue with the 8k writes doesn't seem to be > present on oi. Any thoughts on this? > > Thanks, > Stephan
I have the exact same behaviour on a freshly installed and updated omniosce 151022o: root@vsm02:~# cat /etc/release OmniOS v11 r151022o Copyright 2017 OmniTI Computer Consulting, Inc. All rights reserved. Copyright 2017 OmniOS Community Edition (OmniOSce) Association. All rights reserved. Use is subject to license terms. root@vsm02:~# tail -f /var/adm/messages Sep 11 11:21:42 vsm02 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g600144f0564d504f4f4c3038534c3033 (sd29): Sep 11 11:21:42 vsm02 18 I/O requests are not aligned with 8192 disk sector size in 10 seconds. They are handled through Read Modify Write but the performance is very low! Sep 11 11:21:47 vsm02 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3033 (sd13): Sep 11 11:21:47 vsm02 19 I/O requests are not aligned with 8192 disk sector size in 10 seconds. They are handled through Read Modify Write but the performance is very low! Sep 11 11:21:48 vsm02 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3132 (sd7): Sep 11 11:21:48 vsm02 18 I/O requests are not aligned with 8192 disk sector size in 10 seconds. They are handled through Read Modify Write but the performance is very low! Sep 11 11:21:50 vsm02 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g600144f0564d504f4f4c3037534c3131 (sd6): Sep 11 11:21:50 vsm02 9 I/O requests are not aligned with 8192 disk sector size in 10 seconds. They are handled through Read Modify Write but the performance is very low! Sep 11 11:21:52 vsm02 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g600144f0564d504f4f4c3038534c3033 (sd29): Sep 11 11:21:52 vsm02 9 I/O requests are not aligned with 8192 disk sector size in 10 seconds. They are handled through Read Modify Write but the performance is very low! Is this even a COMSTAR/iSCSI Initiator thing, or is this something else? /stephan
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