[Moosefs-users] shared disks and security issues

[Anh K. H. <ky...@vi...>]

Hello,

I'd like to asks about security issues when sharing disks. E.g, I have the following schema

	MFS master
	|
	\--- mfs chunk 1 (/mnt/share1/ <-- chunk_file_1 on local disk)
	|
	\--- mfs chunk 2 (/mnt/share2/ <-- chunk_file_2 on local disk)

As far as I understand, the contents of /mnt/share1 and /mnt/share2 are synchronized. So what's happened if some private data on /mnt/share1/ appear in /mnt/share2/ ? If the chunk server 2 is comprised, all data on /mnt/share2 can be recovered?

Actually, I want to deploy a system to share disks between instances; each instance will be a "MFS chunk" to provide disks to MFS master, but it also mounts some directories from MFS system to to store private data:
	server1
	|
	\--- local_disk_to_share ----> MFS master
	|				|
	\--- MFS mount point <---------/
		|
		\---- local data

More precisely, an instance won't use its local disk directly, but will use its local disk via MFS system. Is this a good deployment of MFS?

Thank you for you replies.

Regards,

-- 
Anh Ky Huynh