Max Disk Allocation

Neil Sidhu

Getting the hang of it
Joined
Mar 9, 2019
Messages
105
Reaction score
7
Location
Toronto
I have a 4tb survalance drive and I am currently leaving 50GB as un allocated. Is their a guideline as so what I should be leaving? Just trying to figure out my contact crashes.
 

wittaj

IPCT Contributor
Joined
Apr 28, 2019
Messages
25,010
Reaction score
48,773
Location
USA
We recommend leaving 10-15% as unallocated. Many have got by with 10%. Some probably push it a little lower. But you need enough buffer so that when it comes time to rewrite it has space to be able to perform both successfully.
 

SouthernYankee

IPCT Contributor
Joined
Feb 15, 2018
Messages
5,170
Reaction score
5,320
Location
Houston Tx
50 gb free will work. I leave a lot more than that free, I have 240GB free on a 4tb drive. Remember that NTFS uses space for storing information that you can not see. Also BI just check for free space every so often (~5 minutes). So sometimes BI uses more space that it has allocated. The over run on BI space allocated is dependent on the number of cameras and there resolution.

================================
My Standard allocation post.

1) Do not use time (limit clip age)to determine when BI video files are moved or deleted, only use space. Using time wastes disk space.
2) If New and stored are on the same disk drive do not used stored, set the stored size to zero, set the new folder to delete, not move. All it does is waste CPU time and increase the number of disk writes. You can leave the stored folder on the drive just do not use it.
3) Never allocate over 90% of the total disk drive to BI.
4) if using continuous recording on the BI camera settings, record tab, set the combine and cut video to 1 hour or 3 GB. Really big files are difficult to transfer.
5) it is recommend to NOT store video on an SSD (the C: drive).
6) Do not run the disk defragmenter on the video storage disk drives.
7) Do not run virus scanners on BI folders
8) an alternate way to allocate space on multiple drives is to assign different cameras to different drives, so there is no file movement between new and stored.
9) Never use an External USB drive for the NEW folder. Never use a network drive for the NEW folder.


Advanced storage:
If you are using a complete disk for large video file storage (BVR) continuous recording, I recommend formatting the disk, with a windows cluster size of 1024K (1 Megabyte). This is a increase from the 4K default. This will reduce the physical number of disk write, decrease the disk fragmentation, speed up access.
Hint:
On the Blue iris status (lighting bolt graph) clip storage tab, if there is any red on the bars you have a allocation problem. If there is no Green, you have no free space, this is bad.
======================================
 
Last edited:
Top