not enough space when there clearly is

[chuckpage]

My ReadyNAS RN21400 not allowing anyone to save to it or even create a folder for that matter shows not enough space.  There is 1.88 TB free of 5.44 TB.  I just upgraded to firmware 6.8.0 this morning when the NAS became inaccessible and required a hard reboot.

[chuckpage]

Thu Aug 17 2017 12:05:25		Share: File restore from snapshot has completed
Thu Aug 17 2017 12:05:24		Share: File restore from snapshot has started
Thu Aug 17 2017 12:04:08		System: ReadyNASOS background service started.
Thu Aug 17 2017 12:02:39		System: The system is rebooting.
Thu Aug 17 2017 12:01:39		Share: LOGMSG_FSSNAP_RESTORE_FAILED
Thu Aug 17 2017 12:01:39		Share: File restore from snapshot has started
Thu Aug 17 2017 11:54:16		Share: LOGMSG_FSSNAP_RESTORE_FAILED
Thu Aug 17 2017 11:54:16		Share: File restore from snapshot has started
Thu Aug 17 2017 11:44:19		Share: LOGMSG_FSSNAP_RESTORE_FAILED
Thu Aug 17 2017 11:44:19		Share: File restore from snapshot has started
Thu Aug 17 2017 11:42:53		Share: LOGMSG_FSSNAP_RESTORE_FAILED
Thu Aug 17 2017 11:42:52		Share: File restore from snapshot has started
Thu Aug 17 2017 11:14:48		System: Firmware was upgraded to 6.8.0.
Thu Aug 17 2017 11:14:48		System: ReadyNASOS background service started.
Thu Aug 17 2017 11:11:17		System: The system is rebooting.
Thu Aug 17 2017 11:10:27		System: ReadyNASOS background service started.
Thu Aug 17 2017 11:10:23		System: ReadyNASOS service or process was restarted.
Thu Aug 17 2017 0:39:17		Snapshot: Snapshot prune worker successfully deleted snapshot 2017_07_20__00_00_02 from share or LUN DAM.
Thu Aug 17 2017 0:00:01		Miscellaneous: Snapshot c_1502949601 was successfully created for share or LUN DAM.
Wed Aug 16 2017 0:38:04		Snapshot: Snapshot prune worker successfully deleted snapshot 2017_07_19__00_00_17 from share or LUN DAM.

[evan2]

@chuckpage

Cloud do you please send logs to check? 

How do I send all logs to ReadyNAS Community moderators?
https://kb.netgear.com/21543/How-do-I-send-all-logs-to-ReadyNAS-Community-moderators

[evan2]

@chuckpage

I checked journal logs,

it seems there are btrfs errors on your system,

Aug 17 12:13:54 OH-NAS-01 kernel: [<c0012388>] (show_stack) from [<c039b8f0>] (dump_stack+0x94/0xa8)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c039b8f0>] (dump_stack) from [<c0020054>] (warn_slowpath_common+0x84/0xb4)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c0020054>] (warn_slowpath_common) from [<c0020120>] (warn_slowpath_null+0x1c/0x24)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c0020120>] (warn_slowpath_null) from [<c03268e8>] (btrfs_qgroup_free_meta+0xc4/0xc8)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c03268e8>] (btrfs_qgroup_free_meta) from [<c029ce08>] (btrfs_delalloc_reserve_metadata+0x378/0x3f8)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c029ce08>] (btrfs_delalloc_reserve_metadata) from [<c02c79a4>] (__btrfs_buffered_write+0x158/0x708)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c02c79a4>] (__btrfs_buffered_write) from [<c02cc4dc>] (btrfs_file_write_iter+0x428/0x5a8)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c02cc4dc>] (btrfs_file_write_iter) from [<c00dfe64>] (__vfs_write+0xa8/0xd8)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c00dfe64>] (__vfs_write) from [<c00e0684>] (vfs_write+0x90/0x198)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c00e0684>] (vfs_write) from [<c00e0f5c>] (SyS_write+0x44/0x9c)
Aug 17 12:13:54 OH-NAS-01 kernel: [<c00e0f5c>] (SyS_write) from [<c000f2c0>] (ret_fast_syscall+0x0/0x34)
Aug 17 12:13:54 OH-NAS-01 kernel: ---[ end trace 61dea48139300a3b ]---
Aug 17 12:13:55 OH-NAS-01 kernel: ------------[ cut here ]------------
Aug 17 12:13:55 OH-NAS-01 kernel: WARNING: CPU: 3 PID: 5177 at fs/btrfs/qgroup.c:2989 btrfs_qgroup_free_meta+0xc4/0xc8()
Aug 17 12:13:55 OH-NAS-01 kernel: Modules linked in: vpd(PO)
Aug 17 12:13:55 OH-NAS-01 kernel: CPU: 3 PID: 5177 Comm: readyNASVault Tainted: P        W  O    4.4.79.alpine.1 #1
Aug 17 12:13:55 OH-NAS-01 kernel: Hardware name: Annapurna Labs Alpine
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0015980>] (unwind_backtrace) from [<c0012388>] (show_stack+0x10/0x14)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0012388>] (show_stack) from [<c039b8f0>] (dump_stack+0x94/0xa8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c039b8f0>] (dump_stack) from [<c0020054>] (warn_slowpath_common+0x84/0xb4)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020054>] (warn_slowpath_common) from [<c0020120>] (warn_slowpath_null+0x1c/0x24)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020120>] (warn_slowpath_null) from [<c03268e8>] (btrfs_qgroup_free_meta+0xc4/0xc8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c03268e8>] (btrfs_qgroup_free_meta) from [<c029ce08>] (btrfs_delalloc_reserve_metadata+0x378/0x3f8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c029ce08>] (btrfs_delalloc_reserve_metadata) from [<c02c79a4>] (__btrfs_buffered_write+0x158/0x708)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02c79a4>] (__btrfs_buffered_write) from [<c02cc4dc>] (btrfs_file_write_iter+0x428/0x5a8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02cc4dc>] (btrfs_file_write_iter) from [<c00dfe64>] (__vfs_write+0xa8/0xd8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00dfe64>] (__vfs_write) from [<c00e0684>] (vfs_write+0x90/0x198)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0684>] (vfs_write) from [<c00e0f5c>] (SyS_write+0x44/0x9c)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0f5c>] (SyS_write) from [<c000f2c0>] (ret_fast_syscall+0x0/0x34)
Aug 17 12:13:55 OH-NAS-01 kernel: ---[ end trace 61dea48139300a3c ]---
Aug 17 12:13:55 OH-NAS-01 kernel: ------------[ cut here ]------------
Aug 17 12:13:55 OH-NAS-01 kernel: WARNING: CPU: 3 PID: 5177 at fs/btrfs/qgroup.c:2989 btrfs_qgroup_free_meta+0xc4/0xc8()
Aug 17 12:13:55 OH-NAS-01 kernel: Modules linked in: vpd(PO)
Aug 17 12:13:55 OH-NAS-01 kernel: CPU: 3 PID: 5177 Comm: readyNASVault Tainted: P        W  O    4.4.79.alpine.1 #1
Aug 17 12:13:55 OH-NAS-01 kernel: Hardware name: Annapurna Labs Alpine
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0015980>] (unwind_backtrace) from [<c0012388>] (show_stack+0x10/0x14)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0012388>] (show_stack) from [<c039b8f0>] (dump_stack+0x94/0xa8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c039b8f0>] (dump_stack) from [<c0020054>] (warn_slowpath_common+0x84/0xb4)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020054>] (warn_slowpath_common) from [<c0020120>] (warn_slowpath_null+0x1c/0x24)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020120>] (warn_slowpath_null) from [<c03268e8>] (btrfs_qgroup_free_meta+0xc4/0xc8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c03268e8>] (btrfs_qgroup_free_meta) from [<c029ce08>] (btrfs_delalloc_reserve_metadata+0x378/0x3f8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c029ce08>] (btrfs_delalloc_reserve_metadata) from [<c02c79a4>] (__btrfs_buffered_write+0x158/0x708)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02c79a4>] (__btrfs_buffered_write) from [<c02cc4dc>] (btrfs_file_write_iter+0x428/0x5a8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02cc4dc>] (btrfs_file_write_iter) from [<c00dfe64>] (__vfs_write+0xa8/0xd8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00dfe64>] (__vfs_write) from [<c00e0684>] (vfs_write+0x90/0x198)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0684>] (vfs_write) from [<c00e0f5c>] (SyS_write+0x44/0x9c)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0f5c>] (SyS_write) from [<c000f2c0>] (ret_fast_syscall+0x0/0x34)
Aug 17 12:13:55 OH-NAS-01 kernel: ---[ end trace 61dea48139300a3d ]---
Aug 17 12:13:55 OH-NAS-01 kernel: ------------[ cut here ]------------
Aug 17 12:13:55 OH-NAS-01 kernel: WARNING: CPU: 3 PID: 5177 at fs/btrfs/qgroup.c:2989 btrfs_qgroup_free_meta+0xc4/0xc8()
Aug 17 12:13:55 OH-NAS-01 kernel: Modules linked in: vpd(PO)
Aug 17 12:13:55 OH-NAS-01 kernel: CPU: 3 PID: 5177 Comm: readyNASVault Tainted: P        W  O    4.4.79.alpine.1 #1
Aug 17 12:13:55 OH-NAS-01 kernel: Hardware name: Annapurna Labs Alpine
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0015980>] (unwind_backtrace) from [<c0012388>] (show_stack+0x10/0x14)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0012388>] (show_stack) from [<c039b8f0>] (dump_stack+0x94/0xa8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c039b8f0>] (dump_stack) from [<c0020054>] (warn_slowpath_common+0x84/0xb4)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020054>] (warn_slowpath_common) from [<c0020120>] (warn_slowpath_null+0x1c/0x24)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c0020120>] (warn_slowpath_null) from [<c03268e8>] (btrfs_qgroup_free_meta+0xc4/0xc8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c03268e8>] (btrfs_qgroup_free_meta) from [<c029ce08>] (btrfs_delalloc_reserve_metadata+0x378/0x3f8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c029ce08>] (btrfs_delalloc_reserve_metadata) from [<c02c79a4>] (__btrfs_buffered_write+0x158/0x708)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02c79a4>] (__btrfs_buffered_write) from [<c02cc4dc>] (btrfs_file_write_iter+0x428/0x5a8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c02cc4dc>] (btrfs_file_write_iter) from [<c00dfe64>] (__vfs_write+0xa8/0xd8)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00dfe64>] (__vfs_write) from [<c00e0684>] (vfs_write+0x90/0x198)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0684>] (vfs_write) from [<c00e0f5c>] (SyS_write+0x44/0x9c)
Aug 17 12:13:55 OH-NAS-01 kernel: [<c00e0f5c>] (SyS_write) from [<c000f2c0>] (ret_fast_syscall+0x0/0x34)
Aug 17 12:13:55 OH-NAS-01 kernel: ---[ end trace 61dea48139300a3e ]---
Aug 17 12:13:55 OH-NAS-01 kernel: ------------[ cut here ]------------

Could do you please enable sceure diagnotic to let us remote to check?

RAIDar Secure diagnostic
https://kb.netgear.com/27391/ReadyNAS-RAIDar-6-0
or enable secure diagnosticn in NAS admin GUI =>System=>Settings=>Support,

the PM me 5 digital.