Re: [Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver

2017-04-11 Thread yang, xing
Hi, Please see the following article regarding the risks of using MD5. http://searchsecurity.techtarget.com/news/4500270165/MD5-vulnerability-renews-calls-for-faster-SHA-256-transition Thanks, Xing From: yuliy...@cmss.chinamobile.com [yuliy...@cmss.chinamobile.

Re: [Openstack] [OpenStack] [CINDER] how to get updated pool info when multi users create volumes on pool configured?

2016-02-16 Thread yang, xing
thinking in same as to read the volume type in scheduler, however > since it is a new requirement that affects everyone it might not be good to > change now. > > I shall try with the other approach pools for thin /thick and update you. > > > Thanks > Dilip > &g

Re: [Openstack] [OpenStack] [CINDER] how to get updated pool info when multi users create volumes on pool configured?

2016-02-11 Thread yang, xing
Hi Dilip, I see. If thin_provisioning is true and max_over_subscription_ratio is valid, the scheduler will treat it as thin provisioning. We do not prevent driver from reporting both thin and thick support to be true. However, I think we need to make a change. I suggest that you have one po

Re: [Openstack] [CINDER] how to get updated pool info when multi users create volumes on pool configured?

2016-02-10 Thread yang, xing
Hi Dilip, Can you please clarify your question? If a driver reports both thin_provisioning and thick_provisioning to True and reports free_capacity based on thin provisioning , and you want to provision a thick volume, the scheduler won’t block it and it fail when the driver tries to create v

Re: [Openstack] EMC XtremIO Cinder Driver (Liberty)

2016-02-04 Thread yang, xing
XIO.py is not for the XtremIO driver. It should be cinder/volume/drivers/EMC/xtremio.py. Thanks, Xing On Feb 4, 2016, at 11:08 AM, Steve Searles mailto:ssear...@zimcom.net>> wrote: Hello everyone, I am attempting to add the EMC XtremIO driver that is included with Liberty to one of my Cinder

Re: [Openstack] cinder and EMC VNX storage

2014-11-14 Thread yang, xing
Yes, VNX snapshot should work with thick LUN. Thanks, Xing From: mad Engineer [mailto:themadengin...@gmail.com] Sent: Friday, November 14, 2014 4:31 PM To: yang, xing Cc: openstack@lists.openstack.org Subject: Re: [Openstack] cinder and EMC VNX storage Thank you Xing , can snapshot work with

Re: [Openstack] cinder and EMC VNX storage

2014-11-14 Thread yang, xing
Hi, The document you referenced is for the VNX Direct Driver. If you use the VNX Direct driver, you need the “thin provisioning license” to create thin LUNs. If you are only creating thick LUNs, you can skip this license. You need the VNX Snapshot license to create a snapshot in Cinder. I’m

Re: [Openstack] multipath - EMC vs NetApp

2013-11-26 Thread yang, xing
r our company. > > Regards, > Takashi Natsume > NTT Software Innovation Center > Tel: +81-422-59-4399 > E-mail: natsume.taka...@lab.ntt.co.jp > >> -Original Message- >> From: yang, xing [mailto:xing.y...@emc.com] >> Sent: Wednesday, November 27, 2013 2:07 AM >>

Re: [Openstack] multipath - EMC vs NetApp

2013-11-26 Thread yang, xing
tsume [mailto:natsume.taka...@lab.ntt.co.jp] Sent: Tuesday, November 26, 2013 3:52 AM To: yang, xing; openstack@lists.openstack.org Subject: RE: [Openstack] multipath - EMC vs NetApp Hello Xing, Thank you for your reply. You wrote: > What OpenStack release are you running? iSCSI multipath support was

Re: [Openstack] multipath - EMC vs NetApp

2013-11-25 Thread yang, xing
-Original Message- From: Takashi Natsume [mailto:natsume.taka...@lab.ntt.co.jp] Sent: Monday, November 25, 2013 6:07 AM To: yang, xing; openstack@lists.openstack.org Subject: RE: [Openstack] multipath - EMC vs NetApp Hello Xing and all, We tried to set up iSCSI multipath with EMC VNX5300. However

Re: [Openstack] multipath - EMC vs NetApp

2013-11-21 Thread yang, xing
Hi Carlos, We are working on this issue and will keep you informed. Thanks, Xing From: Carlos Alvarez [mailto:cbalva...@gmail.com] Sent: Monday, November 18, 2013 1:19 PM To: openstack@lists.openstack.org Subject: [Openstack] multipath - EMC vs NetApp Hi All. I recently added a EMC V-Max stor