possible reason why there are a lot of /dev/sda*

chickenjoy · 01-17-2018, 05:22 AM

We were provided with 2 identical servers to be used as a DB server. I noticed that node1 has a lot of devices compared to node2. (screenshot attached)

How is this possible and should I reinstall linux to fix this? I installed linux myself and all the partitions I created are identical to one another during installation.

pan64 · 01-17-2018, 05:27 AM

what do you mean by identical?
what will fdisk -l respond?
why do you think you need to fix something/anything?

chickenjoy · 01-17-2018, 09:52 AM

Quote:

Originally Posted by pan64

what do you mean by identical?
what will fdisk -l respond?
why do you think you need to fix something/anything?

identical in a sense that these two servers have the same hardware configuration. They are supposed to be 2 nodes in the same cluster. Linux has just been installed 2 days ago and no other changes have been made.

i'm setting it up to be in production and if I can avoid problems now by reinstalling; then I would do it now because it is harder to fix the problems when it goes live when downtime is not an option.

jefro · 01-18-2018, 02:41 PM

Wonder if one is set to manage many remote nodes using that /dev scheme?

chickenjoy · 01-21-2018, 07:35 PM

Quote:

Originally Posted by jefro

Wonder if one is set to manage many remote nodes using that /dev scheme?

Hi, I have not configured any any nodes (or even to manage anything remotely) on this node.

sundialsvcs · 01-22-2018, 12:14 PM

There's no plausible explanation here except that the configuration of the two servers – possibly with reference to things like SANs – is not the same. Perhaps the one which only shows a couple of entries right now is the one that is somehow in error, not vice-versa.

smallpond · 01-22-2018, 02:00 PM

The /dev directory may have nodes created for disks which are not currently attached to the system. They don't hurt anything. To see the actual block devices use lsblk.