Hi,
I've got a problem with my Raid 5. I got at Gen8 Microserver with 4x4TB which I extended via an USB3 JBOD closure with additional 4x4TB.
Build worked, FS extend worked but after a reboot the Raid assemble fails as at that point in time the external USB3 drives are missing.
Any chance that I can delay the raid mount / assemble until the necessary external drives are available? I can get it working later but obviously
all services are failing during start as the main data drive is not ready (/dev/md0).
Code
[ 2.963888] md: raid6 personality registered for level 6
[ 2.963889] md: raid5 personality registered for level 5
[ 2.963890] md: raid4 personality registered for level 4
[ 2.964089] md/raid:md0: device sda operational as raid disk 0
[ 2.964091] md/raid:md0: device sdd operational as raid disk 3
[ 2.964091] md/raid:md0: device sdc operational as raid disk 2
[ 2.964092] md/raid:md0: device sdb operational as raid disk 1
[ 2.964419] md/raid:md0: allocated 0kB
[ 2.964431] md/raid:md0: not enough operational devices (4/8 failed)
[ 2.964497] RAID conf printout:
[ 2.964498] --- level:5 rd:8 wd:4
[ 2.964499] disk 0, o:1, dev:sda
[ 2.964499] disk 1, o:1, dev:sdb
[ 2.964500] disk 2, o:1, dev:sdc
[ 2.964501] disk 3, o:1, dev:sdd
[ 2.964693] md/raid:md0: failed to run raid set.
...
...
...
[ 20.539660] usb 4-2: new SuperSpeed USB device number 2 using xhci_hcd
[ 20.558725] usb 4-2: New USB device found, idVendor=152d, idProduct=0567
[ 20.558730] usb 4-2: New USB device strings: Mfr=10, Product=11, SerialNumber=5
[ 20.558733] usb 4-2: Product: USB to ATA/ATAPI Bridge
[ 20.558735] usb 4-2: Manufacturer: JMicron
[ 20.558737] usb 4-2: SerialNumber: 152D00539000
[ 20.560307] usb-storage 4-2:1.0: USB Mass Storage device detected
[ 20.560672] scsi8 : usb-storage 4-2:1.0
[ 20.912871] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 21.560776] scsi 8:0:0:0: Direct-Access WDC WD40 EFRX-68WT0N0 0125 PQ: 0 ANSI: 6
[ 21.560999] scsi 8:0:0:1: Direct-Access WDC WD40 EFRX-68WT0N0 0125 PQ: 0 ANSI: 6
[ 21.561211] scsi 8:0:0:2: Direct-Access WDC WD40 EFRX-68WT0N0 0125 PQ: 0 ANSI: 6
[ 21.561422] scsi 8:0:0:3: Direct-Access WDC WD40 EFRX-68WT0N0 0125 PQ: 0 ANSI: 6
[ 21.561664] sd 8:0:0:0: Attached scsi generic sg5 type 0
[ 21.561828] sd 8:0:0:0: [sdf] Very big device. Trying to use READ CAPACITY(16).
[ 21.561846] sd 8:0:0:1: Attached scsi generic sg6 type 0
[ 21.562037] sd 8:0:0:0: [sdf] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
[ 21.562040] sd 8:0:0:0: [sdf] 4096-byte physical blocks
[ 21.562060] sd 8:0:0:2: Attached scsi generic sg7 type 0
[ 21.562151] sd 8:0:0:1: [sdg] Very big device. Trying to use READ CAPACITY(16).
[ 21.562194] sd 8:0:0:3: Attached scsi generic sg8 type 0
[ 21.562379] sd 8:0:0:0: [sdf] Write Protect is off
[ 21.562382] sd 8:0:0:0: [sdf] Mode Sense: 67 00 10 08
[ 21.562504] sd 8:0:0:1: [sdg] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
[ 21.562507] sd 8:0:0:1: [sdg] 4096-byte physical blocks
[ 21.562700] sd 8:0:0:2: [sdh] Very big device. Trying to use READ CAPACITY(16).
[ 21.562841] sd 8:0:0:0: [sdf] No Caching mode page found
[ 21.562935] sd 8:0:0:0: [sdf] Assuming drive cache: write through
[ 21.562985] sd 8:0:0:1: [sdg] Write Protect is off
[ 21.562987] sd 8:0:0:1: [sdg] Mode Sense: 67 00 10 08
[ 21.563099] sd 8:0:0:3: [sdi] Very big device. Trying to use READ CAPACITY(16).
[ 21.563225] sd 8:0:0:2: [sdh] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
[ 21.563228] sd 8:0:0:2: [sdh] 4096-byte physical blocks
[ 21.563358] sd 8:0:0:1: [sdg] No Caching mode page found
[ 21.563434] sd 8:0:0:1: [sdg] Assuming drive cache: write through
[ 21.563560] sd 8:0:0:3: [sdi] 7814037168 512-byte logical blocks: (4.00 TB/3.63 TiB)
[ 21.563563] sd 8:0:0:3: [sdi] 4096-byte physical blocks
[ 21.563694] sd 8:0:0:2: [sdh] Write Protect is off
[ 21.563697] sd 8:0:0:2: [sdh] Mode Sense: 67 00 10 08
[ 21.563816] sd 8:0:0:0: [sdf] Very big device. Trying to use READ CAPACITY(16).
[ 21.563951] sd 8:0:0:3: [sdi] Write Protect is off
[ 21.563954] sd 8:0:0:3: [sdi] Mode Sense: 67 00 10 08
[ 21.564163] sd 8:0:0:2: [sdh] No Caching mode page found
[ 21.564238] sd 8:0:0:2: [sdh] Assuming drive cache: write through
[ 21.564424] sd 8:0:0:3: [sdi] No Caching mode page found
[ 21.564503] sd 8:0:0:3: [sdi] Assuming drive cache: write through
[ 21.564552] sd 8:0:0:1: [sdg] Very big device. Trying to use READ CAPACITY(16).
[ 21.565242] sd 8:0:0:2: [sdh] Very big device. Trying to use READ CAPACITY(16).
[ 21.565520] sd 8:0:0:3: [sdi] Very big device. Trying to use READ CAPACITY(16).
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