All Questions
31
questions
3
votes
1
answer
411
views
How to format NVMe drive in Linux suitable for raid 1 and lvm on xen Host
I want to create a software raid on two identical SSDs
How do I create partitions and format them optimal?
lsblk
nvme0n1 259:0 0 953.9G 0 disk
nvme1n1 259:1 0 953.9G 0 ...
- 29.4k
0
votes
1
answer
626
views
FSCK Failing to fix e2fs on LVM disk image or original SSD
I have a Sandisk 1TB SDD that is in SMART Pre-fail as my boot disk on a machine running Ubuntu 22.04. Recently this disk failed to boot the machine, and is no longer mountable when removed and mounted ...
- 1
0
votes
0
answers
266
views
LVM on SSD has very high write latency
I'm benchmarking lvm raid10 on ssd and postgresql 13.
vgcreate tst3vg /dev/mapper/3600140500000[123456789a]00006a0000000000000
lvcreate --type raid10 -i 5 -m 1 -L 8850G -n lv_tst --raidintegrity y ...
- 1
0
votes
2
answers
2k
views
Creating an SSD partition with a different block size
I am trying to put together a complex setup (Debian) that uses LUKS+LVM+LVM cache in a mixed SSD+HD environment.
To use a partition on the SSD (partition size for lvmcache volumes: 20 GB) as the LVM ...
- 154
2
votes
1
answer
743
views
Cannot clone a full SSD (LVM) to another SSD unless is exact same type
I have a CentOS 7.9 installation and I want to move all SSD contents including OS to a new/faster SSD (both are M.2 nvme).
The disk is setup using LVM.
I tried cloning with Macrium Reflect and other ...
- 603
0
votes
2
answers
948
views
Mixed SSD+HDD setup with encrypted LVM
Before anyone dishes out the facile answer, my SSD is not large enough to hold everything. My /home is full of data, documents, and VMs, approx. 720 GB. I do not want to buy a larger SSD.
The SSD is ...
- 154
0
votes
1
answer
541
views
M2 SSD disk - bad sectors
I have a m2 SSD disk and it has 100 bad sectors (over 3 years). Is there a risk that this type of drive will eventually break, should i do something about it or not necessarily ?
thanks
- 9
5
votes
2
answers
1k
views
LVMCache: Why use a cachepool instead of a cachevol?
I'm aware of the differences between a cachepool and cachevol.
Cachepool separates the cache data and metadata into two separate volumes, whereas a Cachevol uses a single volume for both.
My question ...
- 236
1
vote
1
answer
101
views
Is it possible to define /home's sub folders physical location (SDD vs HDD) if the /home folder spans 2 physical volumes?
I have just installed Fedora on my laptop. I have 2 drives: SSD and HDD. I let Fedora to install Linux in both disks and decide the partitions by itself.
This is how Fedora has created and setup the ...
- 13
1
vote
0
answers
202
views
In dm-cache, does the metadata volume need to be redundant?
I currently have a pool of hard drive storage in LVM, arranged such that each physical volume is an mdraid mirror device, so that I have full redundancy. Now, I'd like to add a SSD cache to this pool ...
- 315
0
votes
1
answer
329
views
Can I temporarily mount a partitioned hard drive while using LVM?
I currently have a hard drive with a boot partition and an extended partition; the extended partition contains /, swap, and /home partitions, as shown in the screenshot below:
I recently acquired a ...
- 111
2
votes
2
answers
3k
views
NVMe disk shows 80% io utilization, partitions show 0% io utilization
I have a CentOS 7 server (kernel 3.10.0-957.12.1.el7.x86_64) with 2 NVMe disks with the following setup:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259:0 0 477G 0 ...
- 105
3
votes
1
answer
14k
views
Is it possible to reload lvm.conf without reboot?
I enabled issue_discards in lvm.conf file on machine with ssd and I'd like to perform blkdiscard on one of logical volumes. Can i do that without rebooting machine? I'm able to unmount physical volume ...
- 1,323
0
votes
1
answer
6k
views
File system check of the root filesystem failed, manual fsck can not fix [closed]
Linux Mint 18 on SDD with LVM ext4
Booting in recovery mode shows:
ata3.00: status: { DRDY DF ERR }
ata3.00: error: { ABRT }
ata3.00: configured for UDMA/100
sd 2:0:0:0: [sdb] tag#0 FAILED Result: ...
- 61
1
vote
0
answers
651
views
How does fstrim keep finding bytes to trim on a Xen PV dom0?
I have a Xen PV node running RHEL6 on the 3.10 kernel. This node has mdadm RAID1 and the following partitions:
[root@node ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md1 ...
- 203