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| Who | When | What | Removed | Added |
|---|---|---|---|---|
| Red Hat Bugzilla | 2022-11-04 07:15:52 UTC | Pool ID | sst_storage_io_rhel_9 | |
| Red Hat One Jira (issues.redhat.com) | 2022-11-04 07:26:25 UTC | Link ID | Red Hat Issue Tracker RHELPLAN-138306 | |
| Rob Evers | 2022-11-28 15:53:31 UTC | Assignee | revers | emilne |
| Doc Type | --- | If docs needed, set a value | ||
| Ewan D. Milne | 2023-01-12 20:59:02 UTC | Flags | needinfo?(tbskyd) | |
| tbsky | 2023-01-13 01:27:38 UTC | Flags | needinfo?(tbskyd) | |
| Ewan D. Milne | 2023-02-17 20:29:42 UTC | Priority | unspecified | medium |
| Status | NEW | ASSIGNED | ||
| Target Release | --- | 9.3 | ||
| Keywords | Triaged | |||
| ChanghuiZhong | 2023-02-20 00:30:25 UTC | CC | czhong | |
| QA Contact | storage-qe | czhong | ||
| Simon Matter | 2023-03-02 08:11:05 UTC | CC | simon.matter | |
| Orion Poplawski | 2023-03-18 01:59:24 UTC | CC | orion | |
| Charles Wei | 2023-06-07 01:49:44 UTC | CC | cwei | |
| CKI KWF Bot | 2023-07-17 17:32:06 UTC | Link ID | Gitlab redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/2819 | |
| CKI KWF Bot | 2023-07-17 17:32:08 UTC | Status | ASSIGNED | POST |
| Ewan D. Milne | 2023-07-17 17:35:03 UTC | Target Milestone | rc | beta |
| Ewan D. Milne | 2023-07-17 17:50:04 UTC | Flags | needinfo?(czhong) | |
| Ewan D. Milne | 2023-07-17 17:56:56 UTC | Flags | needinfo?(tbskyd) | |
| ChanghuiZhong | 2023-07-18 00:39:56 UTC | Flags | needinfo?(czhong) | |
| tbsky | 2023-07-18 01:25:15 UTC | Flags | needinfo?(tbskyd) | |
| ChanghuiZhong | 2023-07-20 08:51:16 UTC | CC | emilne | |
| Flags | needinfo?(emilne) | |||
| Ewan D. Milne | 2023-07-20 12:23:10 UTC | Flags | needinfo?(emilne) | |
| CKI KWF Bot | 2023-07-21 20:41:07 UTC | Status | POST | MODIFIED |
| Jan Stancek | 2023-07-24 12:19:43 UTC | Fixed In Version | kernel-5.14.0-344.el9 | |
| Ewan D. Milne | 2023-07-24 16:06:27 UTC | Doc Text | Feature: New kernel parameter to keep disk order consistent Reason: Modern Linux kernels, including RHEL 9, utilize asynchronous device probing in order to speed up boot time. This can result in different device number assignments for SCSI devices (sda, sdb, etc.) on successive boot iterations. Red Hat documentation recommends the use of persistent device names (/dev/by-id links) in order to ensure that the correct device is used. This is particularly important for SAN-attached devices which may not all be present at boot time. However, the variability in device numbering can now more commonly occur even in systems with only local disks present. To improve consistency in SCSI disk device numbering, a new kernel option "sd_mod.probe=sync" has been added to use synchronous device probing instead of asynchronous device probing for SCSI devices. Result: With the "sd_mod.probe=sync" option, SCSI device enumeration is now performed synchronously, which reduces the variability in device numbering on successive boot attempts. |
|
| Ewan D. Milne | 2023-07-24 16:32:37 UTC | Doc Text | Feature: New kernel parameter to keep disk order consistent Reason: Modern Linux kernels, including RHEL 9, utilize asynchronous device probing in order to speed up boot time. This can result in different device number assignments for SCSI devices (sda, sdb, etc.) on successive boot iterations. Red Hat documentation recommends the use of persistent device names (/dev/by-id links) in order to ensure that the correct device is used. This is particularly important for SAN-attached devices which may not all be present at boot time. However, the variability in device numbering can now more commonly occur even in systems with only local disks present. To improve consistency in SCSI disk device numbering, a new kernel option "sd_mod.probe=sync" has been added to use synchronous device probing instead of asynchronous device probing for SCSI devices. Result: With the "sd_mod.probe=sync" option, SCSI device enumeration is now performed synchronously, which reduces the variability in device numbering on successive boot attempts. | Feature: New kernel parameter to keep disk order consistent Reason: Modern Linux kernels, including RHEL 9, utilize asynchronous device probing in order to speed up boot time. This can result in different device number assignments for SCSI devices (sda, sdb, etc.) on successive boot iterations. Red Hat documentation recommends the use of persistent device names (/dev/by-id links) in order to ensure that the correct device is used. This is particularly important for SAN-attached devices which may not all be present at boot time. However, the variability in device numbering can now more commonly occur even in systems with only local disks present. To improve consistency in SCSI disk device numbering, a new kernel option "sd_mod.probe=sync" has been added to use synchronous device probing instead of asynchronous device probing for SCSI devices. Result: With the "sd_mod.probe=sync" option, SCSI device enumeration is now performed synchronously, which reduces the variability in device numbering on successive boot attempts. NOTE: Even with synchronous SCSI disk probing, it is still possible for the device numbering (and sda, sdb. etc. device names) to change on successive boot attempts. For example, a disk may fail to respond, or a RAID controller configuration may have changed. For this reason, Red Hat strongly continues to recommend the use of persistent device names (/dev/by-id links). |
| Ewan D. Milne | 2023-07-24 16:35:43 UTC | Doc Text | Feature: New kernel parameter to keep disk order consistent Reason: Modern Linux kernels, including RHEL 9, utilize asynchronous device probing in order to speed up boot time. This can result in different device number assignments for SCSI devices (sda, sdb, etc.) on successive boot iterations. Red Hat documentation recommends the use of persistent device names (/dev/by-id links) in order to ensure that the correct device is used. This is particularly important for SAN-attached devices which may not all be present at boot time. However, the variability in device numbering can now more commonly occur even in systems with only local disks present. To improve consistency in SCSI disk device numbering, a new kernel option "sd_mod.probe=sync" has been added to use synchronous device probing instead of asynchronous device probing for SCSI devices. Result: With the "sd_mod.probe=sync" option, SCSI device enumeration is now performed synchronously, which reduces the variability in device numbering on successive boot attempts. NOTE: Even with synchronous SCSI disk probing, it is still possible for the device numbering (and sda, sdb. etc. device names) to change on successive boot attempts. For example, a disk may fail to respond, or a RAID controller configuration may have changed. For this reason, Red Hat strongly continues to recommend the use of persistent device names (/dev/by-id links). | Feature: New kernel parameter to keep disk order consistent Reason: Modern Linux kernels, including RHEL 9, utilize asynchronous device probing in order to speed up boot time. This can result in different device number assignments for SCSI devices (sda, sdb, etc.) on successive boot iterations. Red Hat documentation recommends the use of persistent device names (/dev/by-id links) in order to ensure that the correct device is used. This is particularly important for SAN-attached devices which may not all be present at boot time. However, the variability in device numbering can now more commonly occur even in systems with only local disks present. To improve consistency in SCSI disk device numbering, a new kernel option "sd_mod.probe=sync" has been added to use synchronous device probing instead of asynchronous device probing for SCSI devices. Result: With the "sd_mod.probe=sync" option, SCSI device enumeration is now performed synchronously, which reduces the variability in device numbering on successive boot iterations. NOTE: Even with synchronous SCSI disk probing, it is still possible for the device numbering (and sda, sdb. etc. device names) to change on successive boot iterations. For example, a disk may fail to respond, or a RAID controller configuration may have changed. For this reason, Red Hat strongly continues to recommend the use of persistent device names (/dev/by-id links). This module option is primarily being provided to assist customers migrating from earlier versions of RHEL to RHEL 9 and may be removed in a future major release. |
| errata-xmlrpc | 2023-07-25 00:12:42 UTC | Status | MODIFIED | ON_QA |
| ChanghuiZhong | 2023-07-31 03:26:51 UTC | Status | ON_QA | VERIFIED |
| Jon Magrini | 2023-08-03 13:10:13 UTC | CC | jmagrini |
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