Clustered SCSI target using RBD Status » History » Version 1
Jessica Mack, 07/06/2015 10:03 PM
| 1 | 1 | Jessica Mack | h1. Clustered SCSI target using RBD Status |
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| 2 | 1 | Jessica Mack | |
| 3 | 1 | Jessica Mack | h3. Summary |
| 4 | 1 | Jessica Mack | |
| 5 | 1 | Jessica Mack | The goal of this project is to modify the Linux target layer, LIO, to be able to support active/active access to a device across multiple nodes running LIO. The changes to LIO are being done in a generic way to allow other cluster aware devices to be used, but our focus is on using RBD. |
| 6 | 1 | Jessica Mack | |
| 7 | 1 | Jessica Mack | More info can be found in the Hammer blue print here: |
| 8 | 1 | Jessica Mack | https://wiki.ceph.com/Planning/Blueprints/Hammer/Clustered_SCSI_target_using_RBD |
| 9 | 1 | Jessica Mack | |
| 10 | 1 | Jessica Mack | This will be a update on what has been completed and open issues. |
| 11 | 1 | Jessica Mack | |
| 12 | 1 | Jessica Mack | h3. Owners |
| 13 | 1 | Jessica Mack | |
| 14 | 1 | Jessica Mack | * Name (Affiliation) |
| 15 | 1 | Jessica Mack | * Name (Affiliation) |
| 16 | 1 | Jessica Mack | * Name |
| 17 | 1 | Jessica Mack | |
| 18 | 1 | Jessica Mack | h3. Interested Parties |
| 19 | 1 | Jessica Mack | |
| 20 | 1 | Jessica Mack | * Name (Affiliation) |
| 21 | 1 | Jessica Mack | * Name (Affiliation) |
| 22 | 1 | Jessica Mack | * Name |
| 23 | 1 | Jessica Mack | |
| 24 | 1 | Jessica Mack | h3. Current Status |
| 25 | 1 | Jessica Mack | |
| 26 | 1 | Jessica Mack | h3. Detailed Description |
| 27 | 1 | Jessica Mack | |
| 28 | 1 | Jessica Mack | Open issues from the Hammer blue print include: |
| 29 | 1 | Jessica Mack | |
| 30 | 1 | Jessica Mack | 1. - SCSI task management (TMF) / Unit Attention (UA) / PREEMPT AND ABORT Handling. |
| 31 | 1 | Jessica Mack | |
| 32 | 1 | Jessica Mack | This has not yet been worked on since the Hammer discussion. |
| 33 | 1 | Jessica Mack | |
| 34 | 1 | Jessica Mack | 2. Configuration and Device State. |
| 35 | 1 | Jessica Mack | |
| 36 | 1 | Jessica Mack | - The current plan is to use pacemaker/corosync for the setup and syncing device state across nodes. |
| 37 | 1 | Jessica Mack | |
| 38 | 1 | Jessica Mack | - For management, I am looking into implementing a libStorageMgmt (http://sourceforge.net/projects/libstoragemgmt/) plugin, so tools like lsmcli can manage the target. |
| 39 | 1 | Jessica Mack | |
| 40 | 1 | Jessica Mack | Both of these need more research and discussion. |
| 41 | 1 | Jessica Mack | |
| 42 | 1 | Jessica Mack | h3. Work items |
| 43 | 1 | Jessica Mack | |
| 44 | 1 | Jessica Mack | h4. Coding tasks |
| 45 | 1 | Jessica Mack | |
| 46 | 1 | Jessica Mack | # Task 1 |
| 47 | 1 | Jessica Mack | # Task 2 |
| 48 | 1 | Jessica Mack | # Task 3 |
| 49 | 1 | Jessica Mack | |
| 50 | 1 | Jessica Mack | h4. Build / release tasks |
| 51 | 1 | Jessica Mack | |
| 52 | 1 | Jessica Mack | # Task 1 |
| 53 | 1 | Jessica Mack | # Task 2 |
| 54 | 1 | Jessica Mack | # Task 3 |
| 55 | 1 | Jessica Mack | |
| 56 | 1 | Jessica Mack | h4. Documentation tasks |
| 57 | 1 | Jessica Mack | |
| 58 | 1 | Jessica Mack | # Task 1 |
| 59 | 1 | Jessica Mack | # Task 2 |
| 60 | 1 | Jessica Mack | # Task 3 |
| 61 | 1 | Jessica Mack | |
| 62 | 1 | Jessica Mack | h4. Deprecation tasks |
| 63 | 1 | Jessica Mack | |
| 64 | 1 | Jessica Mack | # Task 1 |
| 65 | 1 | Jessica Mack | # Task 2 |
| 66 | 1 | Jessica Mack | # Task 3 |