Messages in this thread | | | From | Mathias Burén <> | Date | Thu, 1 Oct 2015 19:14:01 +0100 | Subject | megaraid_sas module, no /dev entries for partitions |
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Hi,
I'm using megaraid_sas 06.807.10.00-rc1 from Linux 4.3.0-rc3. The /dev entries get created for the devices, but not for the partitions on the devices. I'm using systemd 226 The LSI card is a
02:0e.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 1068
which is being used in JBOD mode. Here are the /dev entries:
brw-rw---- 1 root disk 8, 64 Oct 1 20:03 /dev/sde brw-rw---- 1 root disk 8, 80 Oct 1 20:03 /dev/sdf
As you can see with fdisk they have partitions:
Disk /dev/sde: 1.8 TiB, 1998998994944 bytes, 3904294912 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x056cc1c0
Device Boot Start End Sectors Size Id Type /dev/sde1 2048 3904294911 3904292864 1.8T fd Linux raid autodetect
Disk /dev/sdf: 1.8 TiB, 1998998994944 bytes, 3904294912 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x9fb14a5c
Device Boot Start End Sectors Size Id Type /dev/sdf1 2048 3904294911 3904292864 1.8T fd Linux raid autodetect
Any idea why the partition entries don't get created in /dev? Is it because I had partitions on the block devices before and since moved on to partitions without erasing the old MD superblocks, causing udev to find the superblock on the block device, and skipping the partition check(s)?
(below showing out of date info on block device for a long gone MD array, the MD array now resides on the partitions, which aren't getting created in /dev/)
~]$ udevadm info /dev/sdf P: /devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:0e.0/host7/target7:2:1/7:2:1:0/block/sdf N: sdf S: disk/by-id/scsi-3600605b0025eff50ff000027c46c9336 S: disk/by-id/wwn-0x600605b0025eff50ff000027c46c9336 S: disk/by-path/pci-0000:02:0e.0-scsi-0:2:1:0 E: DEVLINKS=/dev/disk/by-id/scsi-3600605b0025eff50ff000027c46c9336 /dev/disk/by-path/pci-0000:02:0e.0-scsi-0:2:1:0 /dev/disk/by-id/wwn-0x600605b0025eff50ff000027c46c9336 E: DEVNAME=/dev/sdf E: DEVPATH=/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:0e.0/host7/target7:2:1/7:2:1:0/block/sdf E: DEVTYPE=disk E: ID_BUS=scsi E: ID_FS_LABEL=ion:md0 E: ID_FS_LABEL_ENC=ion:md0 E: ID_FS_TYPE=linux_raid_member E: ID_FS_USAGE=raid E: ID_FS_UUID=0ad2603e-e432-83ee-0218-077398e716ef E: ID_FS_UUID_ENC=0ad2603e-e432-83ee-0218-077398e716ef E: ID_FS_UUID_SUB=93568b01-6323-95bf-7d00-82a5db9b6ff9 E: ID_FS_UUID_SUB_ENC=93568b01-6323-95bf-7d00-82a5db9b6ff9 E: ID_FS_VERSION=1.2 E: ID_MODEL=MegaRAID_84016E E: ID_MODEL_ENC=MegaRAID\x2084016E\x20 E: ID_PATH=pci-0000:02:0e.0-scsi-0:2:1:0 E: ID_PATH_TAG=pci-0000_02_0e_0-scsi-0_2_1_0 E: ID_REVISION=1.12 E: ID_SCSI=1 E: ID_SCSI_SERIAL=0036936cc4270000ff50ff5e02b00506 E: ID_SERIAL=3600605b0025eff50ff000027c46c9336 E: ID_SERIAL_SHORT=600605b0025eff50ff000027c46c9336 E: ID_TYPE=disk E: ID_VENDOR=LSI E: ID_VENDOR_ENC=LSI\x20\x20\x20\x20\x20 E: ID_WWN=0x600605b0025eff50 E: ID_WWN_VENDOR_EXTENSION=0xff000027c46c9336 E: ID_WWN_WITH_EXTENSION=0x600605b0025eff50ff000027c46c9336 E: MAJOR=8 E: MINOR=80 E: SUBSYSTEM=block E: TAGS=:systemd: E: UDISKS_MD_MEMBER_ARRAY_SIZE=8001.06GB E: UDISKS_MD_MEMBER_DEVICES=6 E: UDISKS_MD_MEMBER_DEV_UUID=93568b01:632395bf:7d0082a5:db9b6ff9 E: UDISKS_MD_MEMBER_EVENTS=97557 E: UDISKS_MD_MEMBER_LEVEL=raid6 E: UDISKS_MD_MEMBER_NAME=ion:md0 E: UDISKS_MD_MEMBER_UPDATE_TIME=1415137429 E: UDISKS_MD_MEMBER_UUID=0ad2603e:e43283ee:02180773:98e716ef E: USEC_INITIALIZED=79065504833
Cheers, Mathias
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