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Forum Discussion
Separate data (volume c) and system volumes
I find it hard to understand why the system volume is not an internal device instead of being resident on the drives that are placed in the chassis. An SD card or USB or something else mounted inside...
1) No
2) There is a big ugly unsupported hack to kind of do this (remount data volume as read-only, attempt to remove everything and then once system crashes power off and do OS re-install), but I wouldn't trust that hack.
Yes.
The new disks are synced in. OS remains on the disks. When a factory default is done the OS is installed from the flash onto the disks.
This again adds complexity. Do you still create a OS partition on the disks in the NAS?...
It should still be possible to detect the RAID config, but it does mean a lot of extra scripting for something that perhaps just a small number of users really want.
You can have multiple data volumes, you can choose to have private home shares on a secondary data volume. Then there's things like hot-spares etc.
Not saying it's not feasible, but in many ways it's an unattractive option. There's things for example like the USB key failing and you had a problem with disks failing around the same time.
There's also that storing the OS on a USB boot key would make it much harder for tech support to tell if you've caused problems (e.g. data corruption) via SSH (if enabled) or hooking boot key up to computer and changing things that way. The ability to swap USB keys would a make it very difficult to support. There are support issues involved.
NetGear has to consider each feature request on a case by case basis, assessing demand for a feature and the implications of adding a feature. I don't know what they'd think about this one, but personally I suspect they would have other things that are a higher priority right now.
2) There is a big ugly unsupported hack to kind of do this (remount data volume as read-only, attempt to remove everything and then once system crashes power off and do OS re-install), but I wouldn't trust that hack.
depasseg wrote:
-redundant cards/sticks running RAID (isn't the current root volume just a mounted raid device?)
Yes.
depasseg wrote:
-what happens when new disks are inserted into an array? The OS has to come from somewhere.
The new disks are synced in. OS remains on the disks. When a factory default is done the OS is installed from the flash onto the disks.
depasseg wrote:
it could be loaded on to the sticks/cards the same way.
This again adds complexity. Do you still create a OS partition on the disks in the NAS?...
depasseg wrote:
- other raid solutions (specifically zfs) have the ability to store the raid configuration on the drives themselves.
It should still be possible to detect the RAID config, but it does mean a lot of extra scripting for something that perhaps just a small number of users really want.
depasseg wrote:
- I don't know enough about flex-raid to know why it would be different.
You can have multiple data volumes, you can choose to have private home shares on a secondary data volume. Then there's things like hot-spares etc.
depasseg wrote:
- I see your point about there being some challenges, but there are also some benefits and other companies have products that can do it. So it's feasible.
Not saying it's not feasible, but in many ways it's an unattractive option. There's things for example like the USB key failing and you had a problem with disks failing around the same time.
There's also that storing the OS on a USB boot key would make it much harder for tech support to tell if you've caused problems (e.g. data corruption) via SSH (if enabled) or hooking boot key up to computer and changing things that way. The ability to swap USB keys would a make it very difficult to support. There are support issues involved.
NetGear has to consider each feature request on a case by case basis, assessing demand for a feature and the implications of adding a feature. I don't know what they'd think about this one, but personally I suspect they would have other things that are a higher priority right now.
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