How to make Finder show RAID in the list of connected devices?

Question

RAID

Good afternoon!
There is a montage with Mac OS X 10.8.5 (BuildVersion: 12F45) pre-installed.
RAID connected to it: Areca ARC-1223, mounted in /Volumes/RAID:
root# diskutil list | grep disk4
/dev/disk4
0: GUID_partition_scheme *21.0 TB disk4
1: EFI 209.7 MB disk4s1
2: Apple_HFS RAID 21.0 TB disk4s2
root# mount | grep RAID
/dev/disk4s2 on /Volumes/RAID (hfs, local, nodev, nosuid, journaled, noowners)
root# ls -al /Volumes/ |grep RAID
[email protected] 33 _unknown _unknown 1190 Oct 6 10:24 RAID
root# diskutil info disk4s2
Device Identifier: disk4s2
Device Node: /dev/disk4s2
Part of Whole: disk4
Device / Media Name: Apple_HFS_Untitled_2
Volume Name: RAID
Escaped with Unicode: RAID
Mounted: Yes
Mount Point: /Volumes/RAID
Escaped with Unicode: /Volumes/RAID
File System Personality: Journaled HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended (Journaled)
Journal: Journal size 524288 KB at offset 0x4c78000
Owners: Disabled
Partition Type: Apple_HFS
OS Can Be Installed: Yes
Media Type: Generic
Protocol: SAS
SMART Status: Not Supported
Volume UUID: 65EE1DB5-5D52-3601-9D79-F80661D0C478
Total Size: 21.0 TB (20999603990528 Bytes) (exactly 41014851544 512-Byte-Blocks)
Volume Free Space: 12.0 TB (12048321413120 Bytes) (exactly 23531877760 512-Byte-Blocks)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: No
Internal: No
The problem is that the Finder does not see the RAID as a separate device connected to Mac OS X, which makes it difficult to use it: while programs are saving data to it, programs do not see it, for example, in Final Cut Pro.
How to make Finder show RAID in the list of connected devices?
What to check\correct\do to achieve the goal?

Answer 1

The issue was resolved on my own.
Ran the command '#ls -alO /Volumes'. All data attributes of the /Volumes directory are displayed.
The 'hidden' attribute was set near the RAID.
Ran the command 'chflags nohidden /Volumes/RAID'.
Rebooting the Finder didn't work, but a fresh start of the system showed the attached RAID in the Finder's sidebar.

Answer 2

Finder Settings - Sidebar Tried to check the box?