Dear Strahil,
Thank you very much for pointing me to the RedHat documentation. I wasn't aware of it and it is much more detailed. I will have to read it carefully.
Now as I have a single disk (no RAID) based on that documentation I understand that I should use a data alignment value of 256kB.
Best regards,
Mabi
------- Original Message -------
On Wednesday, June 7th, 2023 at 6:56 AM, Strahil Nikolov <hunter86_bg@xxxxxxxxx> wrote:
On Wednesday, June 7th, 2023 at 6:56 AM, Strahil Nikolov <hunter86_bg@xxxxxxxxx> wrote:
Have you checked this page: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/administration_guide/brick_configuration ?The alignment depends on the HW raid stripe unit size.Best Regards,Strahil Nikolov
On Tue, Jun 6, 2023 at 2:35, mabi<mabi@xxxxxxxxxxxxx> wrote:Hello,I am preparing a brick as LVM thin volume for a test slave node using this documentation:but I am confused regarding the right "--dataalignment" option to be used for pvcreate. The documentation mentions the following under point 1:"Create a physical volume(PV) by using the pvcreate command. For example:pvcreate --dataalignment 128K /dev/sdbHere, /dev/sdb is a storage device. Use the correct dataalignment option based on your device.Note: The device name and the alignment value will vary based on the device you are using."As test disk for this brick I have an external USB 500GB SSD disk from Samsung PSSD T7 (https://semiconductor.samsung.com/consumer-storage/portable-ssd/t7/) but my question is where do I find the information on which alignment value I need to use for this specific disk?Best regards,Mabi________Community Meeting Calendar:Schedule -Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTCGluster-users mailing list
________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://meet.google.com/cpu-eiue-hvk Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users
