Oracle ZFS Storage Appliance: Replication target shares can be mounted in read/write mode without having the exported flag set

Asset ID:	1-72-2138772.1
Update Date:	2018-01-05
Keywords:

Solution Type Problem Resolution Sure

Solution 2138772.1 : Oracle ZFS Storage Appliance: Replication target shares can be mounted in read/write mode without having the exported flag set

Applies to:

Oracle ZFS Storage ZS3-4 - Version All Versions and later
Oracle ZFS Storage ZS3-2 - Version All Versions and later
Oracle ZFS Storage ZS4-4 - Version All Versions and later
Oracle ZFS Storage Appliance Racked System ZS4-4 - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
7000 Appliance OS (Fishworks)

Symptoms

We are able to mount with replicated target while exported=false and able to read/write.

Cause

By changing the sharenfs, it causes the replication target to be exported.

Client system:

client# showmount -e zfssa
no exported file systems for zfssa

ZFS Storage Appliance:

zfssa:shares replication source-000 package-000 repl> list

Filesystems:

NAME SIZE ENCRYPTED MOUNTPOINT
test 57.9K off /export/test

By only changing the sharenfs properties and committing the change

zfssa:shares replication source-000 package-000 repl> get sharenfs
sharenfs = sec=sys,rw
zfssa:shares replication source-000 package-000 repl> set sharenfs="sec=sys,rw,root=test.oracle.com"
sharenfs = sec=sys,rw,root=test.oracle.com (uncommitted)
zfssa:shares replication source-000 package-000 repl> commit
zfssa:shares replication source-000 package-000 repl>

Then we can see that the above replicated shares is now sharing out via NFS

client# showmount -e zfssa
export list for zfssa:
/export/test (everyone)

And the exported properties were not changed

zfssa:shares replication source-000 package-000 repl> get exported
exported = false

And we are able to write to it

client# cd /net/zfssa/export/test
client# ls
client# touch abc
client# ls -l
total 1
-rw-r--r-- 1 root root 0 Jan 5 03:03 abc
client#

Solution

Issue is now fixed in 2013.1.7.0 (aka OS8.7.0)

References

<BUG:22495784> - REPLICATED TARGETS CAN BE MOUNTED BY CLIENTS WITHOUT BEING EXPORTED

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