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NAS ISCSI Sharing

I am setting up a Synology DIsk Station. The backup software I use requires a local drive , I am setting up the NAS as ISCSI. I have two options to enable it; I have a file-level ISCSI and a block-level. I am wondering if I do the block level which boasts faster performance, can I still share out files/folders like I normally would with normal permissions or does setting it up as an ISCSI change how file sharing works on the device? ie: I want the drive connected to 1 computer for backup purposes via ISCSI but I still want to be able to share folders on the NAS to users that connect via smb normally, is this possible?

Thanks,
D
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I am confused because in the DIsk Manager on the Synology it offers file-level or block-level. One formats the drives one doesn't. Maybe I am reading it wrong?
File level could be SMB or NFS, block level would be iSCSI. Without seeing the screen or a photo of it I'm as confused as you are.
Found it - https://www.synology.com/en-uk/knowledgebase/DSM/tutorial/Virtualization/How_to_use_the_iSCSI_Target_service_on_Synology_NAS

iSCSI LUN (regular files) - creates an iSCSI block level LUN but stores it in a file, similar to how Windows Storage server, Starwind and several other software iSCSI targets are created. Since it's stored as a file it can become fragmented and as files can be added to it can be expanded hence thin provisioning is available.

For the "block-level" options it creates a hard partition (I think) on the array and stores the data in that on a one to one mapping, can't get fragmented (although the data on it can) and not so easy to expand or shrink. I don't know if it needs dedicated disks but if so I expact it would warn you before deleting anything.

Unfortunately the links in that document don't work.
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So if I wanted to have it setup for 1 user as iSCSI but still be able to share folders I guess I could always share them from the laptop itself. It's only about 15GB of data...
Yes, that would work although it means doubling the network traffic as it goes from iSCSI target to laptop then from laptop to PC.
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Did I explain how I want the setup done correctly? All the data is on the NAS but their backup software (shadowprotect) only backs up local drives. So with Shadowprotect on the PC I have to connect to the NAS via ISCSI. I was hoping to still be able to share the folders out over the network but just have the ISCSI setup for the backup only. Based on what you saw in your search do you think that would be possible with 1 of the options Synology offers? Is there any more information I could provide you? I appreciate the time you've taken so far!

Thanks
That won't work, the files thy already have on the NAS in their shared folders can't be made available to the backup server over iSCSI.

Why don't you use the backup program built into the NAS, https://www.synology.com/en-uk/knowledgebase/DSM/help/DSM/Tutorial/backup_backup
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