Re: [openstack-dev] [Cinder] Qcow2 support for cinder-backup

2014-05-28 Thread Zhangleiqiang (Trump)
scope to add more to it > (like we > did volume metadata), but I don't want to see QCOW or similar going into > swift. I agreed with Duncan. I will finish the spec for it within the next few days. -- zhangleiqiang (Trump) Best Regards > -Original Messa

[openstack-dev] [Cinder] Question about storage backend capacity expansion

2014-05-14 Thread Zhangleiqiang (Trump)
ironment. Is there some existing method can achieve it ? Currently, I manually updated the "host" value of the existing volumes in database, and the existing volumes can then be handled normally. Thanks. -- zhangleiqiang (Trump) Best Regards ___

[openstack-dev] [Cinder] Qcow2 support for cinder-backup

2014-05-12 Thread Zhangleiqiang (Trump)
NFS driver for backup, and it can be used for GlusterFS too. Any advice? Is there something I have not expected? [1] https://review.openstack.org/#/c/92011/ -- zhangleiqiang (Trump) Best Regards ___ OpenStack-dev mailing list Ope

Re: [openstack-dev] [Cinder] Question about synchronized decoration usage in cinder-volume

2014-05-07 Thread Zhangleiqiang (Trump)
up will also call some methods (at least the "attach_volume) of manager, and since cinder-backup is a standalone process, "external=True" should be used here. -- zhangleiqiang (Trump) Best Regards > -Original Message- > From: Vishvananda Ishaya [mailto:vishvana

Re: [openstack-dev] [Cinder] Confusion about the respective use cases for volume's admin_metadata, metadata and glance_image_metadata

2014-05-07 Thread Zhangleiqiang (Trump)
ind the original commit and decision of introducing admin_metadta according your info above. Hope it is helpful for others: http://eavesdrop.openstack.org/meetings/cinder/2013/cinder.2013-07-17-16.00.log.txt https://review.openstack.org/#/c/38322 -- zhangleiqiang (Trump) Best Regards

[openstack-dev] [Cinder] Confusion about the respective use cases for volume's admin_metadata, metadata and glance_image_metadata

2014-05-04 Thread Zhangleiqiang (Trump)
uot;attach_mode" and "readonly" admin_metadata and empty metadata after created, and I can't find the respective use cases for admin_metada and metadata. For the second situation, what is the better way to handle it? Any advice? -- zhangleiqiang (Trump) Best

[openstack-dev] [Cinder] About store faults info for volumes

2014-04-29 Thread Zhangleiqiang (Trump)
t; which stores the fault info. Maybe it is helpful for users if Cinder also introduces the similar mechanism. Any advice? -- zhangleiqiang (Trump) Best Regards ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists

Re: [openstack-dev] [Nova] Add Qcow2 volume encryption support

2014-04-29 Thread Zhangleiqiang (Trump)
@Daniel: Thanks for your explanation, it helps me a lot. -- zhangleiqiang (Trump) Best Regards > -Original Message- > From: Daniel P. Berrange [mailto:berra...@redhat.com] > Sent: Tuesday, April 29, 2014 5:33 PM > To: OpenStack Development Mailing List (n

[openstack-dev] [Nova] Add Qcow2 volume encryption support

2014-04-29 Thread Zhangleiqiang (Trump)
hink it is meaningful to introduce the support for qcow2 volume encryption? The use case can be found in [1]. [1] https://wiki.openstack.org/wiki/VolumeEncryption [2] http://libvirt.org/formatstorageencryption.html -- zhangleiqiang (Trump) Be

[openstack-dev] [Cinder] Question about the magic "100M" when creating zero-size volume

2014-04-29 Thread Zhangleiqiang (Trump)
Similar codes also exist in ibm.gpfs, san.hp.hp_lefthand_cliq_proxy, san.solaris and huawei.ssh_common. I wonder why the "100M" is used here, from the git log I cannot find useful info. Thanks. -- zhangleiqiang (

Re: [openstack-dev] [Cinder] cinder not support query volume/snapshot with regular expression

2014-04-28 Thread Zhangleiqiang (Trump)
Currently, Nova API achieve this feature based on the database’s REGEX support. Do you have advice on alternative way to achieve it? -- zhangleiqiang (Trump) Best Regards From: laserjetyang [mailto:laserjety...@gmail.com] Sent: Tuesday, April 29, 2014 1:49 PM To: OpenStack Development

[openstack-dev] [Cinder] Question about synchronized decoration usage in cinder-volume

2014-04-26 Thread Zhangleiqiang (Trump)
to know is why this method is needed to be synchronized? Thanks. [1] http://docs.openstack.org/developer/cinder/devref/threading.html#mysql-access-and-eventlet -- zhangleiqiang (Trump) Best Regards ___ OpenStack-dev mailing list

[openstack-dev] [Cinder] cinder not support query volume/snapshot with regular expression

2014-04-25 Thread Zhangleiqiang (Trump)
--instance-name Search with regular expression match by server name (Admin only). I think it is also needed for Cinder when query the volume/snapshot/backup by name. Any advice? -- zhangleiqiang (Trump) Best Regards

[openstack-dev] [nova] Question about modifying instance attribute(such as cpu-QoS, disk-QoS ) without shutdown the instance

2014-04-08 Thread Zhangleiqiang (Trump)
the capability of online adjusting these instance attribute? Thanks -- zhangleiqiang (Trump) Best Regards ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev

Re: [openstack-dev] [cinder] the ability about list the available volume back-ends and their capabilities

2014-04-04 Thread Zhangleiqiang (Trump)
Hi, Mike: Thanks for your time and your advice. I will contact Avishay in #openstack-cinder tonight. -- zhangleiqiang (Trump) Best Regards > -Original Message- > From: Mike Perez [mailto:thin...@gmail.com] > Sent: Friday, April 04, 2014 1:5

[openstack-dev] [cinder] the ability about list the available volume back-ends and their capabilities

2014-04-02 Thread Zhangleiqiang (Trump)
this ability. I find a BP about this ability: https://blueprints.launchpad.net/cinder/+spec/list-backends-and-capabilities But the BP is not approved. Who can tell me the reason? Thanks. -- zhangleiqiang (Trump) Best Regards ___ OpenStac

Re: [openstack-dev] [nova] Feature about QEMU Assisted online-extend volume

2014-03-28 Thread Zhangleiqiang (Trump)
Hi, Duncan: Thanks for your advice. About the "summit session" you mentioned, what things can I do for it ? -- zhangleiqiang (Trump) Best Regards > -Original Message- > From: Duncan Thomas [mailto:duncan.tho...@gmail.com] > Sent: Friday, M

Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device Mapping

2014-03-19 Thread zhangleiqiang
. Any suggestions? "Zhangleiqiang (Trump)" : >> From: Huang Zhiteng [mailto:winsto...@gmail.com] >> Sent: Wednesday, March 19, 2014 12:14 PM >> To: OpenStack Development Mailing List (not for usage questions) >> Subject: Re: [openstack-dev] [Nova][Cinder] F

Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device Mapping

2014-03-19 Thread Zhangleiqiang (Trump)
> From: Huang Zhiteng [mailto:winsto...@gmail.com] > Sent: Wednesday, March 19, 2014 12:14 PM > To: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device > Mapping > > On Tue, Mar 18, 2014 at 5

Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device Mapping

2014-03-18 Thread Zhangleiqiang (Trump)
> From: Huang Zhiteng [mailto:winsto...@gmail.com] > Sent: Tuesday, March 18, 2014 4:40 PM > To: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device > Mapping > > On Tue, Mar 18, 2014 at 11:01 AM,

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-17 Thread Zhangleiqiang (Trump)
7;t alter desktop settings or install > > their own > applications, making the image more secure. > > 3). Less storage. > > > > 2.As the use case mentioned several days ago by zhangleiqiang: > > > > "Let's take a virtual machine which hosts a web

Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device Mapping

2014-03-17 Thread Zhangleiqiang (Trump)
> From: Huang Zhiteng [mailto:winsto...@gmail.com] > Sent: Tuesday, March 18, 2014 10:32 AM > To: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about Raw Device > Mapping > > On Tue, Mar 18, 2014 at 9:40 AM,

[openstack-dev] [Nova][Cinder] Feature about Raw Device Mapping

2014-03-17 Thread Zhangleiqiang (Trump)
aningful if we provide the whole support for RDM feature in OpenStack. Any thoughts? Welcome any advices. [1] https://blueprints.launchpad.net/nova/+spec/libvirt-virtio-scsi-driver -- zhangleiqiang (Trump) Best Regards ___

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-13 Thread Zhangleiqiang (Trump)
> From: sxmatch [mailto:sxmatch1...@gmail.com] > Sent: Friday, March 14, 2014 11:08 AM > To: Zhangleiqiang (Trump) > Cc: openstack-dev@lists.openstack.org > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about volume delete > protection > > > 于 2014-03-11 19:24,

Re: [openstack-dev] Disaster Recovery for OpenStack - call for stakeholder

2014-03-13 Thread Zhangleiqiang (Trump)
recovery steps during recovery, such as the power-off and boot order of instances, etc -- zhangleiqiang (Ray) Best Regards > -Original Message- > From: Bruce Montague [mailto:bruce_monta...@symantec.com] > Sent: Thursday, March 13, 2014 2:38 AM > To: openstack-dev@lists.o

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-11 Thread Zhangleiqiang
> From: Huang Zhiteng [mailto:winsto...@gmail.com] > Sent: Tuesday, March 11, 2014 5:37 PM > To: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about volume delete > protection > > On Tue, Mar 11, 2014 at 5

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-11 Thread Zhangleiqiang
> From: Huang Zhiteng [mailto:winsto...@gmail.com] > Sent: Tuesday, March 11, 2014 4:29 PM > To: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Cinder] Feature about volume delete > protection > > On Tue, Mar 11, 2014 at 11

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-10 Thread Zhangleiqiang
e volume have already deleted, the original volume will be removed automatically. Any thoughts? Welcome any advices. -- zhangleiqiang Best Regards From: John Griffith [mailto:john.griff...@solidfire.com] Sent: Thursday, March 06, 2014 8:38 PM To: OpenStack Development Mailing

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-10 Thread Zhangleiqiang
tem , the data will still be available on the disk. Changes will be discarded only when the system is force RESET or POWERED OFF. Are there any other suggestions? Thanks. [1] http://cormachogan.com/2013/04/16/what-are-dependent-independent-disks-persistent-and-non-persisent-modes/ ---

Re: [openstack-dev] [Cinder] Do you think we should introduce the online-extend feature to cinder ?

2014-03-06 Thread Zhangleiqiang
is as follows: 1. QEMU drain all IO 2. *QEMU* extend the virtual disk 3. QEMU resume IO The difference is the *extend* work need be done by QEMU other than cinder driver. > Feel free to ping me on IRC (pdmars). I don't know your time zone, we can continue the discussion on IRC, :)

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-06 Thread Zhangleiqiang
Agree with you and thanks for your advice, :) -- zhangleiqiang Best Regards From: Alex Meade [mailto:mr.alex.me...@gmail.com] Sent: Friday, March 07, 2014 12:09 AM To: OpenStack Development Mailing List (not for usage questions) Subject: Re: [openstack-dev] [Nova][Cinder] Feature

Re: [openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-06 Thread Zhangleiqiang
OK. We have proposed a blueprint here. https://blueprints.launchpad.net/cinder/+spec/volume-delete-protect Thanks. -- zhangleiqiang Best Regards From: John Griffith [mailto:john.griff...@solidfire.com] Sent: Thursday, March 06, 2014 8:38 PM To: OpenStack Development Mailing List (not

[openstack-dev] [Nova][Cinder] Feature about volume delete protection

2014-03-05 Thread Zhangleiqiang
time, the volume will be actually deleted by the system. Any thoughts? Welcome any advices. Best regards to you. -- zhangleiqiang Best Regards ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-b

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-03 Thread Zhangleiqiang
pecified by Nova. [1] http://libvirt.org/formatdomain.html#elementsDisks -- zhangleiqiang Best Regards > -Original Message- > From: Joe Gordon [mailto:joe.gord...@gmail.com] > Sent: Tuesday, March 04, 2014 11:26 AM > To: OpenStack Development Mailing List (not

Re: [openstack-dev] [Cinder] Do you think we should introduce the online-extend feature to cinder ?

2014-03-03 Thread Zhangleiqiang
t/cinder/+spec/inuse-extend-volume-extension -- zhangleiqiang Best Regards From: John Griffith [mailto:john.griff...@solidfire.com] Sent: Tuesday, March 04, 2014 1:05 AM To: OpenStack Development Mailing List (not for usage questions) Cc: Luohao (brian) Subject: Re: [openstack-dev] [Cin

[openstack-dev] [Cinder] Do you think we should introduce the online-extend feature to cinder ?

2014-03-03 Thread Zhangleiqiang
it will be useful if we introduce the online-extend feature to cinder, especially for the file system based driver, e.g. nfs, glusterfs, etc. Is there any other suggestions? Thanks. -- zhangleiqiang Best Regards ___ OpenStack-dev

Re: [openstack-dev] [OpenStack][Runtime Policy] A proposal for OpenStack run time policy to manage compute/storage resource

2014-02-25 Thread Zhangleiqiang
Hi, Jay & Sylvain: I found the OpenStack-Neat Project (http://openstack-neat.org/) have already aimed to do the things similar to DRS and DPM. Hope it will be helpful. -- Leiqzhang Best Regards From: Sylvain Bauza [mailto:sylvain.ba...@gmail.com] Sent: Wednesday, February 26, 2014 9