Re: [openstack-dev] [cinder] should we use fsync when writing iscsi config file?

2015-09-25 Thread Mitsuhiro Tanino
; On 09/25/2015 12:30 PM, Mitsuhiro Tanino wrote: > > On 09/22/2015 06:43 PM, Robert Collins wrote: > >> On 23 September 2015 at 09:52, Chris Friesen > >> wrote: > >>> Hi, > >>> > >>> I recently had an issue with one file out of a dozen or so

Re: [openstack-dev] [cinder] should we use fsync when writing iscsi config file?

2015-09-25 Thread Mitsuhiro Tanino
ile? > > On 09/25/2015 02:30 PM, Mitsuhiro Tanino wrote: > > On 09/22/2015 06:43 PM, Robert Collins wrote: > >> On 23 September 2015 at 09:52, Chris Friesen > >> wrote: > >>> Hi, > >>> > >>> I recently had an issue with one file out

Re: [openstack-dev] [cinder] should we use fsync when writing iscsi config file?

2015-09-25 Thread Mitsuhiro Tanino
Get target chap auth from file lio: Get target chap auth from Database(in provider_auth) scst: Get target chap auth by using original command If we get authentication from DB for tgtd, iet and cxt same as lio, we can recreate iSCSI target with proper authentication when c-vol is restarted. I th

Re: [openstack-dev] [cinder] Spec for volume migration improvement

2015-06-01 Thread Mitsuhiro Tanino
Hi Vincent, >>@Mitsuhiro Tanino, I believe you can submit another spec for the efficient >>migration as well. Yup, I posted a SPEC and got some positive feedbacks. https://review.openstack.org/#/c/186209/ Also I posted some comments for your spec. Waiting your next update for the

Re: [openstack-dev] [cinder] Migrating in-use volumes with swap_volume in Nova

2015-05-30 Thread Mitsuhiro Tanino
on. http://kashyapc.com/2014/07/06/live-disk-migration-with-libvirt-blockcopy/ Before applying this way to your system, it is recommended to test very well as many people said at the summit, because this scenario is not included tempest test case. Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS

Re: [openstack-dev] [stable] [Cinder] FFE for "Clear migration_status from a destination volume if migration fails"

2015-04-09 Thread Mitsuhiro Tanino
Hi Jay, Thank you for your cooperation. This fix was merged successfully today. Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS > -Original Message- > From: Jay S. Bryant [mailto:jsbry...@electronicjungle.net] > Sent: Tuesday, April 07, 2015 11:08 AM > To: OpenStack Develop

[openstack-dev] [stable] [Cinder] FFE for "Clear migration_status from a destination volume if migration fails"

2015-04-06 Thread Mitsuhiro Tanino
steps. Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin

Re: [openstack-dev] [Cinder] Support LVM on a shared LU

2014-11-14 Thread Mitsuhiro Tanino
//review.openstack.org/#/c/127318/ * cinder: https://review.openstack.org/#/c/129352/ Gerrit Review: * nova: https://review.openstack.org/#/c/92443/ * cinder: https://review.openstack.org/#/c/92479/ Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS _

Re: [openstack-dev] [Nova] Nominating Jay Pipes for nova-core

2014-08-01 Thread Mitsuhiro Tanino
+1 Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS c/o Red Hat, 314 Littleton Road, Westford, MA 01886 > -Original Message- > From: Russell Bryant [mailto:rbry...@redhat.com] > Sent: Thursday, July 31, 2014 7:58 AM > To: openstack-dev@lists.openstack.org &

[openstack-dev] [Nova] Requesting spec freeze exception: "LVM: Support a volume-group on shared storage" spec

2014-07-17 Thread Mitsuhiro Tanino
ps://review.openstack.org/92443 - Cinder piece Blue print : https://blueprints.launchpad.net/cinder/+spec/lvm-driver-for-shared-storage cinder patch : https://review.openstack.org/92479 Regards, Mitsuhiro Tanino HITACHI DATA SYSTEMS c/o Red Hat, 314 Littleton

Re: [openstack-dev] [Cinder] Support LVM on a shared LU

2014-06-02 Thread Mitsuhiro Tanino
way as the situation demands. Ex. As for "Standard" type storage, use proposed software based LVM cinder driver. As for "High performance" type storage, use hardware based cinder driver.(Ex. Higher charge than "Standard" volume) This is one of use-case of

Re: [openstack-dev] [Cinder] Support LVM on a shared LU

2014-05-23 Thread Mitsuhiro Tanino
ge. LVM can’t create nested snapshot with shared LVM now. Therefore, we can’t assign writable LVM snapshot to instances. Is this answer for your comment? >> In short, I think the cons outweigh the pros. Are there people deploying >> OpenStack who would deploy >> their storage li

[openstack-dev] [Cinder] Support LVM on a volume attached to multiple nodes

2014-04-10 Thread Mitsuhiro Tanino
ul and not depends on storage arrangement, but we have to access a volume group via network even if we have FC environment. If we have multi attached FC volume, it is better to access the volume via FC instead of iSCSI target. As a result, we expect better I/O performance and latency to acce