Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision |
mount [2022/03/10 17:40] – astroadmin | mount [2022/03/11 20:53] (current) – ↷ Page moved from admininfo:newusersetup:mount to mount astroadmin |
---|
There are several Mac and OSX users in the department. As such it is common that some people may have a Mac external hard-drive. These are usually formatted as hfsplus and are usually "journaled". A drive that is "journaled" keeps a change log. Usually these are **NOT** compatible with Linux or MS environments as its the Mac OSX which is tracking changes to this external drive. | There are several Mac and OSX users in the department. As such it is common that some people may have a Mac external hard-drive. These are usually formatted as hfsplus and are usually "journaled". A drive that is "journaled" keeps a change log. Usually these are **NOT** compatible with Linux or MS environments as its the Mac OSX which is tracking changes to this external drive. |
| |
We are able to mount these drives on the cluster, **HOWEVER,** these drives will be automatically mounted as read-only. Root (accessible **only** by the Sys Admins) is able to force these drive to mount as read-write, **HOWEVER.** this comes with a non-zero risk of data loss. Since the drive is keeping a change-log via Mac OSX, if a different OS makes changes to it, there is a possibility that the change-log / data will be corrupted. | We are able to mount these drives on the cluster, **HOWEVER,** these drives will be automatically mounted as read-only. Root (accessible **only** by the Sys Admins) is able to force these drive to mount as read-write. **HOWEVER,** this comes with a non-zero risk of data loss. Since the drive is keeping a change-log via Mac OSX, if a different OS makes changes to it, there is a possibility that the change-log / data will be corrupted. |
| |
Use of this type of file formatted drive on the cluster is highly discouraged. | Use of this type of file formatted drive on the cluster is highly discouraged. |
| |
| "Journaled" hard-drives are not unique to Mac OSX environments, and its possible that external hard-drives in Windows / Linux environments might also be "journaled", but are less common. |
| |
| Sometimes it is possible to turn off this "journal" feature. |