Change in vdsm[master]: Shrink the new volume When merging block cow volumes
ykaplan at redhat.com
ykaplan at redhat.com
Wed Dec 12 09:25:04 UTC 2012
Yeela Kaplan has posted comments on this change.
Change subject: Shrink the new volume When merging block cow volumes
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Patch Set 1: (5 inline comments)
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Commit Message
Line 3: AuthorDate: 2012-11-13 17:47:46 +0200
Line 4: Commit: Yeela Kaplan <ykaplan at redhat.com>
Line 5: CommitDate: 2012-12-04 19:29:38 +0200
Line 6:
Line 7: Shrink the new volume When merging block cow volumes
Done
Line 8:
Line 9: Change-Id: I8ace4c48d278cb84ce871bc402643131265c3198
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File vdsm/storage/blockVolume.py
Line 293: newSize)
Line 294: sizemb = (newSize + 2047) / 2048
Line 295: lvm.reduceLV(self.sdUUID, self.volUUID, sizemb)
Line 296:
Line 297: def shrinkOnMerge(self, dstVol):
Done
Line 298: volParams = self.getVolumeParams()
Line 299: if volParams['volFormat'] == volume.COW_FORMAT:
Line 300: lvm.activateLVs(self.sdUUID, self.volUUID)
Line 301: offset = qemuImg.check(self.getVolumePath(), qemuImg.FORMAT.QCOW2)
Line 301: offset = qemuImg.check(self.getVolumePath(), qemuImg.FORMAT.QCOW2)
Line 302: lvm.deactivateLVs(self.sdUUID, self.volUUID)
Line 303: volActualSize = offset
Line 304: volBaseSize = int(config.get("irs", "volume_utilization_chunk_mb"))
Line 305: volBaseSize = volBaseSize * 1024 * 1024
Done
Line 306: volUtil = int(config.get("irs", "volume_utilization_percent"))
Line 307: finalSize = (volActualSize + volBaseSize * volUtil * 0.01)
Line 308: self.reduce((finalSize + 511) / 512)
Line 309: self.log.debug('Shrink qcow volume: %s on merge to : %s bytes',
Line 303: volActualSize = offset
Line 304: volBaseSize = int(config.get("irs", "volume_utilization_chunk_mb"))
Line 305: volBaseSize = volBaseSize * 1024 * 1024
Line 306: volUtil = int(config.get("irs", "volume_utilization_percent"))
Line 307: finalSize = (volActualSize + volBaseSize * volUtil * 0.01)
Done
Line 308: self.reduce((finalSize + 511) / 512)
Line 309: self.log.debug('Shrink qcow volume: %s on merge to : %s bytes',
Line 310: self.sdUUID, finalSize)
Line 311:
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File vdsm/storage/lvm.py
Line 1089:
Line 1090: raise se.LogicalVolumeExtendError(vgName, lvName, "%sM" % (size, ))
Line 1091:
Line 1092:
Line 1093: def reduceLV(vgName, lvName, size):
Done
Line 1094: """
Line 1095: Size units: MB (1024 ** 2 = 2 ** 20)B.
Line 1096: """
Line 1097: # WARNING! From man vgs:
--
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Gerrit-MessageType: comment
Gerrit-Change-Id: I8ace4c48d278cb84ce871bc402643131265c3198
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Yeela Kaplan <ykaplan at redhat.com>
Gerrit-Reviewer: Ayal Baron <abaron at redhat.com>
Gerrit-Reviewer: Eduardo <ewarszaw at redhat.com>
Gerrit-Reviewer: Federico Simoncelli <fsimonce at redhat.com>
Gerrit-Reviewer: Yeela Kaplan <ykaplan at redhat.com>
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