Bug 1119323
| Summary: | [RHEL7.1] LVM Thin Provisioning - feature tracker | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jonathan Earl Brassow <jbrassow> |
| Component: | lvm2 | Assignee: | Jonathan Earl Brassow <jbrassow> |
| lvm2 sub component: | Thin Provisioning | QA Contact: | Cluster QE <mspqa-list> |
| Status: | CLOSED NOTABUG | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | agk, dustymabe, fdeutsch, heinzm, jbrassow, mcsontos, msnitzer, prajnoha, prockai, thornber, zkabelac |
| Version: | 7.0 | Keywords: | Tracking |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-02-04 16:51:15 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1164947, 1899140, 1899206, 998347, 1000604, 1065456, 1075644, 1077368, 1079430, 1083633, 1091562, 1112642, 1119839, 1132211, 1133079, 1149008, 1149279, 1149287, 1152806, 1153306, 1163529, 1163530, 1163532, 1163873, 1163880, 1163895, 1164915, 1164933, 1164942, 1166873, 1168140 | ||
| Bug Blocks: | 958235 | ||
|
Description
Jonathan Earl Brassow
2014-07-14 14:06:59 UTC
RESOLVED: UNRESOLVED: Bug 1119839 [rhel7] LVM Thin: Enable use of error_if_no_space Bug 1152806 [rhel7] LVM Thin: Add ability to specify individual thin LV chunk size Bug 1153362 [rhel7] LVM thin: Support ThinDataLV on cache volumes UNSCHEDULED: Bug 1000604 [rhel7] allow user to switch thin-pool to read-only mode at a configurable low space threshold RESOLVED: UNRESOLVED: Bug 1119839 [rhel7] LVM Thin: Enable use of error_if_no_space Bug 1152806 [rhel7] LVM Thin: Add ability to specify individual thin LV chunk size Bug 1153362 [rhel7] LVM thin: Support ThinDataLV on cache volumes Bug 1083633 [rhel7] LVM tools need to deal properly with thin provisioning needs_check flag Bug 1132211 [RHEL6] thin pool conversion fails when the size gap between the pool and meta device is too great Bug 1133079 [RHEL6] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1153306 [rhel7] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1091562 [rhel6] LVM THIN: Unable to perform vgsplit when specifying thin[pool] by name Bug 1104702 [rhel6] [RFE] Thin pool should support offline metadata resize Bug 1112642 [rhel6] lvs needs an attribute to indicate when a thin pool is out-of-space and unusable Bug 1149008 [rhel6] exclusive activation of thin pool and thin origin device is not maintained when mixing and merging thin and non thin snapshots Bug 1149279 [rhel6] exclusive activation of lvol0_pmspare is not maintained after a pvmove of it's device Bug 1075644 [rhel7] Resizing pool metadata on RAID10 LV fails due to rounding error Bug 1077368 [rhel7] make 'lvresize --poolmetadatasize' round values like 'lvresize -L' does UNSCHEDULED: Bug 1000604 [rhel7] allow user to switch thin-pool to read-only mode at a configurable low space threshold Bug 1149287 [RHEL6] pvmove doesn't work on exclusively activated clustered thin pool volumes Bug 1065456 [rhel7] Thin pool is not readable while waits for pool resize Bug 1079430 [rhel7] [RFE] Allow creating pmspare volume on RAID RESOLVED: UNRESOLVED: Bug 1119839 [rhel7] LVM Thin: Enable use of error_if_no_space Bug 1152806 [rhel7] LVM Thin: Add ability to specify individual thin LV chunk size Bug 1153362 [rhel7] LVM thin: Support ThinDataLV on cache volumes Bug 1083633 [rhel7] LVM tools need to deal properly with thin provisioning needs_check flag Bug 1132211 [RHEL6] thin pool conversion fails when the size gap between the pool and meta device is too great Bug 1133079 [RHEL6] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1153306 [rhel7] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1091562 [rhel6] LVM THIN: Unable to perform vgsplit when specifying thin[pool] by name Bug 1104702 [rhel6] [RFE] Thin pool should support offline metadata resize Bug 1112642 [rhel6] lvs needs an attribute to indicate when a thin pool is out-of-space and unusable Bug 1149008 [rhel6] exclusive activation of thin pool and thin origin device is not maintained when mixing and merging thin and non thin snapshots Bug 1149279 [rhel6] exclusive activation of lvol0_pmspare is not maintained after a pvmove of it's device Bug 1075644 [rhel7] Resizing pool metadata on RAID10 LV fails due to rounding error Bug 1077368 [rhel7] make 'lvresize --poolmetadatasize' round values like 'lvresize -L' does Bug 998347 [rhel7] "lvcreate -l 100%FREE -T vg/thin-pool" returns error UNSCHEDULED: Bug 1000604 [rhel7] allow user to switch thin-pool to read-only mode at a configurable low space threshold Bug 1149287 [RHEL6] pvmove doesn't work on exclusively activated clustered thin pool volumes Bug 1065456 [rhel7] Thin pool is not readable while waits for pool resize Bug 1079430 [rhel7] [RFE] Allow creating pmspare volume on RAID RESOLVED: UNRESOLVED: Bug 1119839 [rhel7] LVM Thin: Enable use of error_if_no_space Bug 1152806 [rhel7] LVM Thin: Add ability to specify individual thin LV chunk size Bug 1153362 [rhel7] LVM thin: Support ThinDataLV on cache volumes Bug 1083633 [rhel7] LVM tools need to deal properly with thin provisioning needs_check flag Bug 1132211 [RHEL6] thin pool conversion fails when the size gap between the pool and meta device is too great Bug 1133079 [RHEL6] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1153306 [rhel7] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1091562 [rhel6] LVM THIN: Unable to perform vgsplit when specifying thin[pool] by name Bug 1104702 [rhel6] [RFE] Thin pool should support offline metadata resize Bug 1112642 [rhel6] lvs needs an attribute to indicate when a thin pool is out-of-space and unusable Bug 1149008 [rhel6] exclusive activation of thin pool and thin origin device is not maintained when mixing and merging thin and non thin snapshots Bug 1149279 [rhel6] exclusive activation of lvol0_pmspare is not maintained after a pvmove of it's device Bug 1075644 [rhel7] Resizing pool metadata on RAID10 LV fails due to rounding error Bug 1077368 [rhel7] make 'lvresize --poolmetadatasize' round values like 'lvresize -L' does Bug 998347 [rhel7] "lvcreate -l 100%FREE -T vg/thin-pool" returns error UNSCHEDULED: Bug 1000604 [rhel7] allow user to switch thin-pool to read-only mode at a configurable low space threshold Bug 1149287 [RHEL6] pvmove doesn't work on exclusively activated clustered thin pool volumes Bug 1065456 [rhel7] Thin pool is not readable while waits for pool resize Bug 1079430 [rhel7] [RFE] Allow creating pmspare volume on RAID Bug 1163529 [rhel7] LVM Thin: Warn if Thin/CacheMetadataLV is not on fast storage. Bug 1163530 [rhel7] LVM Thin: Support automatic resize of ThinpoolMetaLV Bug 1163532 [rhel7] LVM Thin: Allow a thin pool to be defragmented Bug 1163873 [rhel7] LVM Thin: Add ability to set pool metadata area to read-only Bug 1163880 [rhel7] LVM Thin: Add vgsplit/vgmerge support for thin[pools] Bug 1163894 [rhel7] LVM Thin: Record and display 'origin' and divergence time for thin snapshots Bug 1163895 [rhel7] LVM Thin: Allow operations on sets of thin volumes. Bug 1164915 [rhel7] LVM Thin: Create thin-volumes from existing old-style snapshots Bug 1164933 [rhel7] LVM Thin: Add ability to import LVs into a thin pool Bug 1164942 [rhel7] LVM Thin: Improve fault handling and recovery Bug 1164947 [rhel7] LVM Thin: /boot support for ThinLVs Another unscheduled: Bug 1166873 - LVM Thin: Ability to resize thinsnaps to something other than their origin > - Support offline resize via metadata export/import > > This can already be done online, so we need to look at the > usecases driving this. > NEEDINFO Shrinking a data pool cannot be safely done online. This could well require moving data away from the part of the device that is to be removed. On offline tool is being written (part of thinp-tools). > - Metadata backup for pools where the mappings aren't changing. I'm not sure where this requirement came from. LVM would have to be very certain that the mappings are not changing (ie. always activating in read-only-metadata mode). The backup could be made in binary or xml format; either using dd, or thin_dump. > - When doing a merge of an internal snap offer the option to keep > the old origin around. NEEDINFO - isn't this just a rename of both then? What's the point? Yes, 'merge' is a trivial rename + reactivation. This requirement is purely about providing a friendly command line interface. The point is one or both of the devices may be active, so we need to reload tables pointing to different thin devices. > - Undo external snap (with no merging). > Mostly done, external origin ends up with a different name. NEEDINFO - I don't understand this request. When taking an external snapshot the external dev becomes read-only, we then create two snapshots within the pool. One which acts as a writeable version of the origin/external dev, and one which is the 'snapshot' requested. People may want to undo this, and go back to modifying the origin directly. > > - Merge of external snap NEEDINFO - do you mean merge to external origin? Yes. > Migration to thinp > ================== > > - Create thin-volumes from existing old-style snapshots sharing same > data blocks in the pool (not necessary a full deduplication, > compare and share only blocks at the same offset) to allow dropping > the original (old-style snapshot) LVs. > Bug 1164915 NEEDINFO: Not clear on design. An offline tool would examine the old style snapshot, and either modify an existing pool, or create a new one: - The data device would be extended with the COW store from the old snap. - Mappings would be added to map a thin onto the COW blocks. - The origin would become read only; but a new snap of it would be used to provide writeable origin (see external snap discussion above). Optionally we could pull the origin into the pool as well. Probably default behaviour if the origin is an LV. > System integration > ================== > > - / on a thin LV > - repair tools in dracut, scripted/configurable behaviour, recovery when > not safe to do automatically DONE. NEEDINFO: We can have / on thinLVs, but how well are we handling recovery scenarios? No idea. LVM team to answer. (In reply to Joe Thornber from comment #20) > > System integration > > ================== > > > > - / on a thin LV > > - repair tools in dracut, scripted/configurable behaviour, recovery when > > not safe to do automatically > > DONE. > NEEDINFO: We can have / on thinLVs, but how well are we handling recovery > scenarios? > > No idea. LVM team to answer. This is also interesting for RHEV, we investigate having / on a thinLV for RHEV-H RESOLVED: Bug 1119839 [rhel7] LVM Thin: Enable use of error_if_no_space UNRESOLVED: Bug 1152806 [rhel7] LVM Thin: Add ability to specify individual thin LV chunk size Bug 1153362 [rhel7] LVM thin: Support ThinDataLV on cache volumes Bug 1083633 [rhel7] LVM tools need to deal properly with thin provisioning needs_check flag Bug 1132211 [RHEL6] thin pool conversion fails when the size gap between the pool and meta device is too great Bug 1133079 [RHEL6] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1153306 [rhel7] lvconvert validation is missing when same LV name is used for thinpool and originname Bug 1091562 [rhel6] LVM THIN: Unable to perform vgsplit when specifying thin[pool] by name Bug 1104702 [rhel6] [RFE] Thin pool should support offline metadata resize Bug 1112642 [rhel6] lvs needs an attribute to indicate when a thin pool is out-of-space and unusable Bug 1149008 [rhel6] exclusive activation of thin pool and thin origin device is not maintained when mixing and merging thin and non thin snapshots Bug 1149279 [rhel6] exclusive activation of lvol0_pmspare is not maintained after a pvmove of it's device Bug 1075644 [rhel7] Resizing pool metadata on RAID10 LV fails due to rounding error Bug 1077368 [rhel7] make 'lvresize --poolmetadatasize' round values like 'lvresize -L' does Bug 998347 [rhel7] "lvcreate -l 100%FREE -T vg/thin-pool" returns error UNSCHEDULED: Bug 1000604 [rhel7] allow user to switch thin-pool to read-only mode at a configurable low space threshold Bug 1149287 [RHEL6] pvmove doesn't work on exclusively activated clustered thin pool volumes Bug 1065456 [rhel7] Thin pool is not readable while waits for pool resize Bug 1079430 [rhel7] [RFE] Allow creating pmspare volume on RAID Bug 1163529 [rhel7] LVM Thin: Warn if Thin/CacheMetadataLV is not on fast storage. Bug 1163530 [rhel7] LVM Thin: Support automatic resize of ThinpoolMetaLV Bug 1163532 [rhel7] LVM Thin: Allow a thin pool to be defragmented Bug 1163873 [rhel7] LVM Thin: Add ability to set pool metadata area to read-only Bug 1163880 [rhel7] LVM Thin: Add vgsplit/vgmerge support for thin[pools] Bug 1163894 [rhel7] LVM Thin: Record and display 'origin' and divergence time for thin snapshots Bug 1163895 [rhel7] LVM Thin: Allow operations on sets of thin volumes. Bug 1164915 [rhel7] LVM Thin: Create thin-volumes from existing old-style snapshots Bug 1164933 [rhel7] LVM Thin: Add ability to import LVs into a thin pool Bug 1164942 [rhel7] LVM Thin: Improve fault handling and recovery Bug 1164947 [rhel7] LVM Thin: /boot support for ThinLVs Bug 1166873 - LVM Thin: Ability to resize thinsnaps to something other than their origin |