Questions tagged [storage]
Use this tag to refer to any kind of data retention device (RAM, flash, hard disks, magnetic tape, punch cards, etc.), its means of separating pieces of information (files, blocks, sectors, etc.) or how to record and retrieve them. This is a very broad topic so selecting other tags relating to the medium (hard-drive, cdrom, etc.) or the format used on it (fat, ntfs, ext, f2fs, etc.) may help to identify it further.
514 questions
1 vote
0 answers
72 views
How can I find what’s using space in my root LVM (/dev/mapper/ol_wglsbi02-root) on RHEL / Oracle Linux?
I inherited two servers, a production server (wglsbi02) and a mirror/backup server (wglsbi01), that were originally set up by someone who has since left the company. I’m not an experienced system ...
3 votes
1 answer
79 views
What is the best way to detect busy CPU cores for blk-mq request steering in Linux kernel?
I am trying to implement request steering in Linux kernel’s blk-mq layer to distribute I/O requests across CPU cores based on load. My goal is to redirect requests from busy cores to less busy ones to ...
- 31
5 votes
2 answers
530 views
Is it possible to replace the disks in LVM raid with larger disks?
Currently I have a file server running Centos 9 Stream. The operating system is on its own disk and own logical volume group and logical volumes. The are a further 3 disk attached to the motherboard ...
3 votes
1 answer
147 views
Smartctl triggers: please convert it to SG_IO
When I do smartctl -i /dev/sda there is no output (except from the smartctl welcome message) and the kernel reports: smartctl is using a deprecated SCSI ioctl, please convert it to SG_IO Searching ...
- 161
1 vote
1 answer
266 views
Wear level and total bytes written in SATA SSD
On a Samsung SATA SSD, i.e. non NVMe disk, the following are the SmartCtl values that are obtained by running the command sudo smartctl -a /dev/sda, SMART Attributes Data Structure revision number: 1 ...
- 128
0 votes
2 answers
176 views
Why did my backup folder with large amounts of repeated data compress so poorly?
I have a folder with around seventy subfolders, each containing a few tarballs which are nightly backups of a few directories (the largest being /home) from an old Raspberry Pi. Each is a full backup; ...
- 261
2 votes
0 answers
125 views
How to handle Duplicity not being able to do backups to Google Cloud Storage bucket because bucket contains aborted backup
I have setup a Google Cloud Storage bucket for my Duplicity backups. The bucket has a retention policy of 1 year. Today Duplicity got interrupted while doing the backups, and now, every time I want to ...
- 1,428
0 votes
0 answers
24 views
Will Duplicity download anything from the destination when doing a `remove-all-but-n-full`?
I'm using Google Cloud Storage to store backups taken by Duplicity. Since I just want to keep 4 full backups at the destination I run: duplicity remove-all-but-n-full 4 --force \ --s3-endpoint-url=...
- 1,428
1 vote
0 answers
36 views
How to collect statistics of data transmission in Linux USB gadget device?
I am working on an embedded Linux system (kernel-5.10.188), where USB mass_storage gadget is enabled and configured. After the mass_stoage is enabled and connected to another USB host, is there a way ...
- 651
-1 votes
1 answer
454 views
Can systemctl daemon-reload be executed from rescue mode on Debian?
Is there a way to run systemctl daemon-reload in rescue mode. (Debian) If so, how? I was trying to change the mount point of one of my drives, so I edited my fstab file to the desired location. Then, ...
0 votes
1 answer
213 views
Share one SSD Cache across multiple volumes & storage pools on Synology NAS
I have a new Synology NAS with 2 storage pools, and I have one volume per pool. I have added a single SSD to the NAS to serve as a cache, and was able to add it to the first storage pool. This is a ...
- 1,993
-1 votes
1 answer
149 views
Resizing filesystem to increase space in AWS EC2 instance
I created an AWS EC2 instance, and I am using the EC2 instance to maintain a database. I'm currently trying to perform some post-processing on my database (by quering my database in batches), but this ...
- 107
0 votes
1 answer
341 views
Reducing the / mount point size in Redhat Enterprise Linux 9
I want to re-allocated some of the storage space in the / mount point for other mount points like /opt and /tmp. The filesystem is formated in xfs file system so I was not able to use lvreduce or ...
0 votes
1 answer
172 views
Will my system be any faster or slower with this LVM mirroring scheme?
I usually boot my system from a single 250G M.2 NVMe SSD (PCIe 3.0 x4). I also have a 240G SATA SSD and a 640G SATA 7200rpm HDD that I currently use for ad hoc backup. The latter will be replaced with ...
- 23
3 votes
2 answers
228 views
RAID array reverts to the old disk after reboot
I have replaced my RAID array from RAID 1 with 2 x 4TB disks to 2 x 10TB disks using mdadm. The process can be summarized as follows: add the 2 new disks to the RAID array, wait for sync, remove the 2 ...
