All Questions
19
questions
0
votes
0
answers
29
views
How to extend btrfs subvolumes space using separate SSD?
$ lsblk -f -o +SIZE
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS SIZE
sda ...
- 103
0
votes
0
answers
111
views
My linux is using 100% of my ssd for no reason
The largest folders I have on the system
WARNING:
Full balance without filters requested. This operation is very
intense and takes potentially very long. It is recommended to
use the balance filters ...
3
votes
1
answer
300
views
What optimizations are turned on with the mount option "ssd"?
"Debian 12 Bookworm Minimal Install w/BTRFS
" by JustAGuy Linux at 8:28 he sets an option for ssd,
mount -o ... ssd ...
What is the option ssd? When should it be used, and when should it ...
- 31.8k
2
votes
1
answer
1k
views
How to measure the role of btrfs in SSD wear on my PC?
I've used btrfs for my encrypted partitions (luks) on Samsung EVO SSDs. The disks failed faster than expected. How can I assess whether e.g. ext4 would be more reliable on these disks for my usage, or ...
- 584
0
votes
0
answers
283
views
How do fstrim and BTRFS SSD optimizations work for both SSD's in a RAID1?
First apologies if this has been asked before, but I could not find any link with any combination of keywords.
My question is - How do SSD optimisations work in BTRFS in a RAID1 where both devices are ...
- 101
0
votes
1
answer
89
views
Trim and btrfs with raid1
I know that btrfs support trim/discard, as a mount option or manually (fstrim -A).
I want to made a raid1 of ssd, I will get any problem with trim?
- 12.8k
1
vote
1
answer
991
views
Clonezilla generates disk clone with wrong/unupdated UUIDs
[original question in https://stackoverflow.com/questions/73959107/clonezilla-generates-disk-clone-with-wrong-unupdated-uuids]
I recently used clonezilla (disk-to-disk) - both stable and alternative ...
- 111
4
votes
0
answers
212
views
Is it possible to assign/limit a BTRFS subvolume to a particular device, and if so how?
My root (BTRFS) filesystem is on a small SSD, and /var is on a larger, slower, separately formatted (also with BTRFS) HDD. This works well, but I can't use CoW when copying files between the two ...
- 318
1
vote
1
answer
554
views
Do I need RAID 1 when setting up Btrfs on Linux?
I would like to install Debian setting up my disk using Btrfs.
I have read on the Debian documentation (https://wiki.debian.org/Btrfs) on the recommendations section, it says that I should use at ...
- 223
2
votes
1
answer
3k
views
btrfs performance comparison: ssd with compression vs hdd without compression
Has anyone done any r/w performance comparisons using btrfs with compression enabled on an M.2 nvme ssd vs uncompressed hdd?
- 21
3
votes
1
answer
3k
views
Are BtrFS snapshots killing my SSD?
As I know, BtrFS snapshots don't actually copy data. I suppose, actual copying executes on every change of snapshoted data.
So is it right that BtrFS partition on SSD with enabled Snapshots doubles ...
- 133
6
votes
1
answer
4k
views
Adding an SSD to an existing HDD-based BTRFS filesystem
I have a BTRFS filesystem with a HDDs of various sizes. I thought adding an SSD might allow BTRFS to use it as a caching layer or just another much-faster drive (the docs are a little sparse on this: ...
- 161
2
votes
0
answers
572
views
SSDs in RAID slower than single device/tips to improve performance [closed]
I have a couple of hosted servers, running Debian 7, one has a single Samsung MZ7LM120HCFD, the other has 3 Intel SSDSC2BB160G4 in RAID1. The machine with the single Samsung SSD has significantly ...
- 59
4
votes
1
answer
6k
views
Where should I enable discard option?
I'm installing a system on SSD with LUKS and Btrfs, where should I enable discard option for TRIM support? Only /etc/crypttab, only /etc/fstab, everywhere, or nowhere since Btrfs detects SSDs and ...
- 147
7
votes
1
answer
1k
views
Can I get SSD rw performance while keeing data security if I combine SSD & HDD in btrfs RAID1
I have 2 storage devices; classical slow HDD (750GB, /dev/sda) and faster SSD (128GB, /dev/sdb). Currently I have installed Ubuntu & Mint on same btrfs partition on SSD (/dev/sdb5). My btrfs pool ...
- 365