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06-24-2020 01:48 PM - edited 06-24-2020 01:53 PM
06-24-2020 01:48 PM - edited 06-24-2020 01:53 PM
Hello there,
Recently our technicians added a new 3.8TB disk to the Array. We were able to add the disk to the Logical drive 1 as follows:
ssacli ctrl slot=0 ld 1 add drives=allunassigned
Followed by
ssacli ctrl slot=0 ld 1 modify size=max
Subsequently we ran
ssacli rescan
Fortunately, the controller recognizes the new added disk to the logical drive but the Operating system CentOS Linux release 7.6.1810 (Core) isn't able to recognize the new size of the block device.
ssacli
# ssacli ctrl slot=0 pd all show
HPE Smart Array P408i-a SR Gen10 in Slot 0 (Embedded)
Array A
physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SATA SSD, 3.8 TB, OK)
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SATA SSD, 3.8 TB, OK)
physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SATA SSD, 3.8 TB, OK)
physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SATA SSD, 3.8 TB, OK)
physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SATA SSD, 3.8 TB, OK)
physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SATA SSD, 3.8 TB, OK)
physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SATA SSD, 3.8 TB, OK)
# ssacli ctrl slot=0 ld all show
HPE Smart Array P408i-a SR Gen10 in Slot 0 (Embedded)
Array A
logicaldrive 1 (17.47 TB, RAID 6, OK)
then from OS perspective,
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 14T 0 disk
├─sda1 8:1 0 200M 0 part /boot/efi
├─sda2 8:2 0 1G 0 part /boot
└─sda3 8:3 0 14T 0 part
├─centos-root 253:0 0 50G 0 lvm /
├─centos-swap 253:1 0 128G 0 lvm [SWAP]
└─centos-ovirt 253:2 0 10T 0 lvm /storage/some/path
# blockdev --report /dev/sda
RO RA SSZ BSZ StartSec Size Device
rw 8192 512 4096 0 15362888654848 /dev/sda
I've tried partprobe and also partx, parted but to no avail.
# parted /dev/sda print
Model: HPE LOGICAL VOLUME (scsi)
Disk /dev/sda: 15.4TB
Sector size (logical/physical): 512B/8192B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 211MB 210MB fat16 EFI System Partition boot
2 211MB 1285MB 1074MB xfs
3 1285MB 15.4TB 15.4TB lvm
Note: I don't want to reboot the system.
Is there a way to force the OS to detect the new disk / logical drive geometry without rebooting the system?
Thanks in advance!
Solved! Go to Solution.
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06-24-2020 02:50 PM
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06-25-2020 12:27 AM - edited 06-25-2020 12:29 AM
06-25-2020 12:27 AM - edited 06-25-2020 12:29 AM
Re: Expansion of HPE Smart Array P408i-a on gen10 running CentOS 7 not recognized
Hi pamassus,
THank you very much for your reply. That was indeed the fix! What I did try was
echo "- - -" > /sys/class/scsi_host/host1/scan
but that did not help. Since it concerns a production system I was being extra careful and thought let's throw the question in here.
Thanks agian and have a great day!