From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755608Ab2KDP05 (ORCPT ); Sun, 4 Nov 2012 10:26:57 -0500 Received: from na01-by2-obe.ptr.protection.outlook.com ([207.46.100.30]:18544 "EHLO na01-by2-obe.mail.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755413Ab2KDP0w (ORCPT ); Sun, 4 Nov 2012 10:26:52 -0500 X-Forefront-Antispam-Report-Untrusted: CIP:157.56.234.5;KIP:(null);UIP:(null);(null);H:SN2PRD0310HT005.namprd03.prod.outlook.com;R:internal;EFV:INT X-SpamScore: -10 X-BigFish: PS-10(zz98dI9371I936eI542M1432I1447Izz1de0h1202h1d1ah1d2ahzz8275dhz31h2a8h668h839h93fhd25hf0ah1288h12a5h12a9h12bdh137ah13b6h1441h1504h1537h153bh1155h) From: KY Srinivasan To: James Bottomley CC: "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "devel@linuxdriverproject.org" , "ohering@suse.com" , "hch@infradead.org" , "linux-scsi@vger.kernel.org" Subject: RE: Drivers: scsi Thread-Topic: Drivers: scsi Thread-Index: AQHNunBNeEv0vukYrkymMIfn7qPLvJfZzHSA Date: Sun, 4 Nov 2012 15:26:31 +0000 Message-ID: <426367E2313C2449837CD2DE46E7EAF930DF9113@SN2PRD0310MB382.namprd03.prod.outlook.com> References: <1351960806-16240-1-git-send-email-kys@microsoft.com> <1352021949.2427.19.camel@dabdike.int.hansenpartnership.com> In-Reply-To: <1352021949.2427.19.camel@dabdike.int.hansenpartnership.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [70.192.129.74] Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 X-OrganizationHeadersPreserved: SN2PRD0310HT005.namprd03.prod.outlook.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%HANSENPARTNERSHIP.COM$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%LINUXFOUNDATION.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%VGER.KERNEL.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%LINUXDRIVERPROJECT.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%SUSE.COM$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%INFRADEAD.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-CrossPremisesHeadersPromoted: TK5EX14MLTC102.redmond.corp.microsoft.com X-CrossPremisesHeadersFiltered: TK5EX14MLTC102.redmond.corp.microsoft.com X-Forefront-Antispam-Report: CIP:131.107.125.37;CTRY:US;IPV:CAL;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(377424002)(377454001)(51704002)(51914002)(13464001)(24454001)(6806001)(74662001)(47976001)(53806001)(50466001)(54356001)(44976002)(49866001)(47776002)(16676001)(54316001)(47736001)(50986001)(31966008)(4396001)(51856001)(23676001)(46102001)(74502001)(33656001)(47446002)(76482001)(5343655001)(550254004);DIR:OUT;SFP:;LANG:en; X-OriginatorOrg: microsoft.onmicrosoft.com X-Forefront-PRVS: 0655F9F006 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id qA4FQxY0004580 > -----Original Message----- > From: James Bottomley [mailto:James.Bottomley@HansenPartnership.com] > Sent: Sunday, November 04, 2012 4:39 AM > To: KY Srinivasan > Cc: gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org; > devel@linuxdriverproject.org; ohering@suse.com; hch@infradead.org; linux- > scsi@vger.kernel.org > Subject: Re: Drivers: scsi > > On Sat, 2012-11-03 at 09:40 -0700, K. Y. Srinivasan wrote: > > Do we currently support dynamic re-sizing of LUNs. Hyper-V can > > notify capacity change via sense data and I was wondering if this > > is handled in the generic scsi code. > > Depends what you mean by "dynamic". Experience shows that most users > really don't want all this to happen without manual intervention > (particularly on shrink). However, we have the mechanics in place. > Just send ASC/Q 2A/09 and it can get vectored up to LVM which resizes > the volume and can be scripted automatically to resize the filesystem. > > hypervisor people tend to have problems with scripting, so there are > some hacks that do this outside of the normal event system ... see for > example virtio_scsi.c Thanks for the prompt response. Regards, K. Y {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I