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<[email protected]> wrote: Hello,
I am preparing a brick as LVM thin volume for a test slave node using this documentation: https://docs.gluster.org/en/main/Administrator-Guide/formatting-and-mounting-bricks/ 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/sdb Here, /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 UTC Bridge: https://meet.google.com/cpu-eiue-hvk Gluster-users mailing list [email protected] https://lists.gluster.org/mailman/listinfo/gluster-users
________ 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 [email protected] https://lists.gluster.org/mailman/listinfo/gluster-users
