# What is "/dev/mapper/system-root\_lv"? **URL:** \ **Category:** SLES Configure-Administer\ **Created:** [September 29, 2017, 9:42am UTC](https://forums.suse.com/t/what-is-dev-mapper-system-root-lv/30386 "2017-09-29T09:42:26Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bryan1207](https://avatars.discourse-cdn.com/v4/letter/b/5fc32e/32.png) [@bryan1207](https://forums.suse.com/u/bryan1207)\ **Post date:** [September 29, 2017, 9:42am UTC](https://forums.suse.com/t/what-is-dev-mapper-system-root-lv/30386/1 "2017-09-29T09:42:26Z")
Hi experts, after installation of the OS and the SAP HANA. I’m wondering how did the system created “/dev/mapper/system-root\_lv”. Because I’m worried of the increase of the size. How can I adjust it? Hope to hear positive response from you. Regards, ---
**Author:** ![bryan1207](https://avatars.discourse-cdn.com/v4/letter/b/5fc32e/32.png) [@bryan1207](https://forums.suse.com/u/bryan1207)\ **Post date:** [September 29, 2017, 11:59am UTC](https://forums.suse.com/t/what-is-dev-mapper-system-root-lv/30386/2 "2017-09-29T11:59:21Z")
It’s extremely increasing. ---
**Author:** ![ab1](https://avatars.discourse-cdn.com/v4/letter/a/d2c977/32.png) [@ab1](https://forums.suse.com/u/ab1)\ **Post date:** [September 29, 2017, 7:42pm UTC](https://forums.suse.com/t/what-is-dev-mapper-system-root-lv/30386/3 "2017-09-29T19:42:54Z")
By its name that sounds like the LVM logical volume (LV) created for the root filesystem, meaning the filesystem that holds everything not partitioned separately within there. It should grow as you do install the system, or additional software, or create additional files, unless you create those additional files in other filesystem partitions/volumes. – Good luck. If you find this post helpful and are logged into the web interface, show your appreciation and click on the star below. If you want to send me a private message, please let me know in the forum as I do not use the web interface often.