2072746 – storage - support for attaching cache volumes to existing volumes

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Bug 2072746 - storage - support for attaching cache volumes to existing volumes

Summary: storage - support for attaching cache volumes to existing volumes

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat Enterprise Linux 9
Classification:	Red Hat
Component:	rhel-system-roles
Sub Component:
Version:	9.0
Hardware:	All
OS:	Linux
Priority:	unspecified
Severity:	medium
Target Milestone:	rc
Target Release:	9.1
Assignee:	Rich Megginson
QA Contact:	ChanghuiZhong
Docs Contact:	Michal Stubna
URL:
Whiteboard:	role:storage
Depends On:	2055200 2066881
Blocks:
TreeView+	depends on / blocked

Reported:	2022-04-06 21:50 UTC by David Lehman
Modified:	2022-11-15 11:23 UTC (History)
CC List:	7 users (show)
Fixed In Version:	rhel-system-roles-1.19.3-1.el9
Doc Type:	Enhancement
Doc Text:	.Better support for cached volumes is available in the `storage` RHEL System Role The `storage` RHEL System Role can now attach cache to existing LVM logical volumes. LVM cache can be used to improve performance of slower logical volumes by temporarily storing subsets of an LV's data on a smaller, faster device, for example an SSD. This enhances the previously added support for creating cached volumes by allowing adding (attaching) a cache to an existing, previously uncached volume.
Clone Of:	2066881
Environment:
Last Closed:	2022-11-15 10:23:26 UTC
Type:	Bug
Target Upstream Version:
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Links
System	ID	Priority	Status	Summary	Last Updated
Github	linux-system-roles storage pull 273	None	Draft	Add support for attaching LVM cache to existing LVs	2022-05-31 21:01:19 UTC
Red Hat Issue Tracker	RHELPLAN-118168	None	None	None	2022-04-06 22:09:25 UTC
Red Hat Product Errata	RHEA-2022:8117	None	None	None	2022-11-15 10:23:51 UTC

Description David Lehman 2022-04-06 21:50:26 UTC

+++ This bug was initially created as a clone of Bug #2066881 +++

Description of problem:
Support for attaching cache volumes to existing volumes

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 ChanghuiZhong 2022-06-23 09:37:20 UTC

test pass with python3-blivet-3.4.0-15.el9 + tests_create_lvm_cache_then_remove.yml
https://bugzilla.redhat.com/show_bug.cgi?id=2055200#c2

Comment 3 ChanghuiZhong 2022-06-28 04:01:27 UTC

test pass with rhel-system-roles-1.19.3-0.2.el9

blivet-data-3.4.0-15.el9.noarch
python3-blivet-3.4.0-15.el9.noarch
rhel-system-roles-1.19.3-0.2.el9.noarch

# ansible-playbook tests_create_lvm_cache_then_remove.yml

PLAY RECAP **************************************************************************
st102                      : ok=375  changed=5    unreachable=0    failed=0    skipped=347  rescued=0    ignored=0   

hit known issue on localhost test：
Bug 2044119 - [RHEL9] _storage_test_pool_pvs get wrong data type in test-verify-pool-members.yml

Comment 6 ChanghuiZhong 2022-07-08 10:07:46 UTC

# rpm -qa | grep -E 'system-roles|blivet'                      
blivet-data-3.4.0-15.el9.noarch                                                      
python3-blivet-3.4.0-15.el9.noarch                                                   
rhel-system-roles-1.19.3-1.el9.noarch


# ansible-playbook /usr/share/ansible/roles/linux-system-roles.storage/tests/tests_create_lvm_cache_then_remove.yml

PLAY RECAP **************************************************************************
127.0.0.1                  : ok=384  changed=6    unreachable=0    failed=0    skipped=346  rescued=0    ignored=0

NAME                           MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS                 
sda                              8:0    0 447.1G  0 disk                             
├─sda1                           8:1    0   600M  0 part /boot/efi                   
├─sda2                           8:2    0     1G  0 part /boot                       
└─sda3                           8:3    0 445.5G  0 part                             
  ├─rhel_storageqe--102-root   253:0    0    70G  0 lvm  /                           
  ├─rhel_storageqe--102-swap   253:1    0   7.6G  0 lvm  [SWAP]                      
  └─rhel_storageqe--102-home   253:2    0 367.9G  0 lvm  /home                       
sdb                              8:16   0 447.1G  0 disk                             
└─sdb1                           8:17   0 447.1G  0 part                             
  └─foo-test_corig             253:6    0     5G  0 lvm                              
    └─foo-test                 253:3    0     5G  0 lvm                              
sdc                              8:32   0 447.1G  0 disk                             
└─sdc1                           8:33   0 447.1G  0 part                             
  ├─foo-test_cache_cpool_cdata 253:4    0     4G  0 lvm                              
  │ └─foo-test                 253:3    0     5G  0 lvm                              
  └─foo-test_cache_cpool_cmeta 253:5    0     8M  0 lvm                              
    └─foo-test                 253:3    0     5G  0 lvm                              



NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS                   
sda                            8:0    0 447.1G  0 disk                               
├─sda1                         8:1    0   600M  0 part /boot/efi                     
├─sda2                         8:2    0     1G  0 part /boot                         
└─sda3                         8:3    0 445.5G  0 part                               
  ├─rhel_storageqe--102-root 253:0    0    70G  0 lvm  /                             
  ├─rhel_storageqe--102-swap 253:1    0   7.6G  0 lvm  [SWAP]                        
  └─rhel_storageqe--102-home 253:2    0 367.9G  0 lvm  /home                         
sdb                            8:16   0 447.1G  0 disk                               
└─sdb1                         8:17   0 447.1G  0 part                               
  └─foo-test_corig           253:6    0     5G  0 lvm                                
    └─foo-test               253:3    0     5G  0 lvm                                
sdc                            8:32   0 447.1G  0 disk                               
└─sdc1                         8:33   0 447.1G  0 part                               
  ├─foo-pool00_cpool_cdata   253:4    0     4G  0 lvm                                
  │ └─foo-test               253:3    0     5G  0 lvm                                
  └─foo-pool00_cpool_cmeta   253:5    0     8M  0 lvm                                
    └─foo-test               253:3    0     5G  0 lvm    


move to verified

Comment 10 errata-xmlrpc 2022-11-15 10:23:26 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (rhel-system-roles bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:8117

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