ONTAP Discussions

Clarification needed on this KB - https://kb.netapp.com/app/answers/answer_view/a_id/1000287

ASH2017

Hi Folks,

 

According to this KB:
https://kb.netapp.com/app/answers/answer_view/a_id/1000287

 

In the output of sis status -l for the same volume, the following line is included:


Logical Data: 3509 GB/49 TB (7%)

 

Logical 4K records are = 919863296

Total checked 4K records are = 18115836411


Hence, Filer is consuming total 4KB blocks = 18115836411 - 919863296 = 17195973115 (4K records)


Total size in TB = 17195973115 / 1024 / 1024 / 1024 = 16TB

 

Does that mean = out of 49 TB, 16Tb is been consumed by stale-fingerprints, and if consider 20% of total logical data i.e = 20 % 3509GB = 701GB = 0.7 TB

 

Total space that can be recovered = 16 - 0.7 = 15.3Tb can be recovered 

 

Is that correct calculation ?

 

Thanks

Ash

 

1 ACCEPTED SOLUTION

ASH2017

I think I foud the clue in the same document:

 

Size of each record = 32 bytes

 

= 17195973115 x 32 = 550271139680 bytes


= 55027113968 / 1024 / 1024 / 1024 = 512GB NOT 16TB

View solution in original post

1 REPLY 1

ASH2017

I think I foud the clue in the same document:

 

Size of each record = 32 bytes

 

= 17195973115 x 32 = 550271139680 bytes


= 55027113968 / 1024 / 1024 / 1024 = 512GB NOT 16TB

View solution in original post

Announcements
Register for Insight 2021 Digital

INSIGHT 2021 Digital: Meet the Specialists 2

On October 20-22, gear up for a fully digital, totally immersive virtual experience with a downright legendary lineup of world-renowned specialists. Tune in for visionary conversations, solution deep dives, technical sessions and more.

NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner
Public