Read Only

[Rusty]

I have connected to an iSCSI target but I only have read access. Does anyone know why this happens?

[Olivia (staff)]

Which brand of target are you using? Please check permissions.

[Rusty]

Hi Olivia,

The Target is on a WDMyCloudEX4 NAS. It has CHAP authentication enabled, the permissions are pretty basic there is no way of configuring read on only access for the target.

I can connect to the target using the built in initiator on a Windows 10 machine using the same credentials and I can read/write to the target.

Thanks Olivia

[genoso]

Hi Olivia,

Same issue here with a WD EX2 NAS as target. I am using CHAP authentication and in Windows 10 I get full access but on my Mac, using KernSafe iSCSI Initiator X, I get just read only access.

I am using 2.20 version on Mac OS Sierra 10.12.1

BR

[genoso]

Hi,

I just realized, in my case, and probably in rest of people suffering this issue, was not related to KernSafe SW but due to Mac OS NTFS file system read only limitation.

I have confirmed if system has other file system it will get full write access!

BR

[Rusty]

I am pretty sure the WD NAS Devices use a proprietary file system

[genoso]

Hi Rusty,

iSCSI target provides a Disk pseudo "physical" Connection towards initiator though IP network, andit is up to host running initiator to format and partition that hard disk.

In my case, I created a iSCSI unit on WD EX2 NAS and afterwards initiated it on a Windows system, from which I formatted it as NTFS. Later on, I mounted it into Mac OS Sierra and I showed already mentioned behavior.

If you want to get write/read access to the HD, use Disk Utility native application from Mac to format iSCSI unit once initiated, in the same way as you would do with an external USB HD pre-formatted in NTFS file system.

BR

[Rusty]

Thanks BR, that makes perfect sense...

use Disk Utility native application from Mac to format iSCSI unit once initiated

So if I understand correctly an iSCSI target cannot provide read/write access to MAC and Windows initiators, you have to choose a format?

That being the case, just out of curiosity, how do MAC computers handle using data on Shared folders on a Windows server? Does the same read only rule apply?

Cheers!

[genoso]

Thanks BR, that makes perfect sense...

That being the case, just out of curiosity, how do MAC computers handle using data on Shared folders on a Windows server? Does the same read only rule apply?

Cheers!

Windows shared folders are supported by SAMBA protocol, which has nothing to do with iSCSI one.

SAMBA access control is handled by the server, being a layer over the file system underneath which is completely hidden to client host. It is equivalent to NFS for unix/linux systems or AFS (being deprecated ) for mac systems.

Hope this clarifies, if you want to dig into this subjects, you have plenty of information in the internet.