RH 7.5 - How to set some LUNs (SAN) in read only mode
Hi ! I’m gonna try to explain, the best I can, english is not my primary language and Google translate is not always good !
We have a Linux Server RH 7.5 (physical) and this server is used for backup. We have a application called Netbackup installed on this server. This server is zoned in our SAN environment, where all our VM servers are installed. So when it’s time to backup and/or restore these VM server, our Linux server backup the data through fiber (SAN) instead of network. These LUN are not mounted on the Linux server (mount point). We are using multipath, and with the multipath -ll command, I can see the LUNs discovered by the Linux Server.
We would like to set all LUNs in read only mode except for one LUN. Why ? Because we don't want restore accidentally a VM and overwrite them. We would like use this LUN with read/write for this, restore on this LUN and after this, the administrator of VMware can move the server to their original place.
It is possible to do this only on the LInux Server and not on the Storage Device (SAN module)?
We have also some Windows servers for doing the same thing and with Windows, when the LUN is set to offline, this mean the LUN is set to read only mode, and when we set tue LUN to online, we can write on it .
We want to change all our Windows to Linux but we would like to keep the same fonctions.
Thanks !