Video Screencast Help
Give us your opinion and win with Symantec! Please help us by taking this survey to tell us about your experience with Symantec Connect, so that we can continue to grow and improve.  Take the survey.

How to use maximum slots of SL500 StorageTek tape library?

Created: 08 Oct 2012 • Updated: 08 Oct 2012 | 5 comments
anil_kumar731's picture
This issue has been solved. See solution.


I have SL500 tape library at our site. We have 100 tapes in the library slots.There are many more free slots in it, but i am not able to use these free slots when i do inventory.

Can any say what is the reason for this.

How to add tapes to this free slots?

Any suggestions for using these free slots.

Comments 5 CommentsJump to latest comment

Nicolai's picture

From a command line type (run as administrator if you are on Windows)


Select the robot and then issue

s s

If less than 100 slots is listed it may be a license issue with the tape library. Netbackup should under normal operation seaming less use all available slots.

Update: How may of those free slots are we talking about - some slots of the SL500 are reserved for diagnostic ussage and can't be used for customer data.

See figure 1-4 in this manual

Assumption is the mother of all mess ups.

If this post answered your'e qustion -  Please mark as a soloution.

anil_kumar731's picture

Hi Nicolai,

 By running the below command :


s s

I could only see 100 slots are in use.

Does this means that my library can only use 100 slots?

anil_kumar731's picture


I can find the below output in robtest:

can any explain anything about this:

First transport addr = 0, Number transport elements = 1
First storage addr = 1000, Number storage elements = 100
First media access port addr = 10, Number media access port elements = 15
First drive addr = 500, Number drive elements = 4
Library does have a barcode reader
MODE_SENSE complete

Will Restore's picture

I agree with Nicolai.  The library needs license update to utilize more slots.  (Not a Netbackup issue)

Will Restore -- where there is a Will there is a way

mph999's picture

further to the excellent answers by the very experienced Nicolai and wr ... I agree ...

It may be the case that an additional license is required from the vendor.

Nothing can be done in NBU to fix this, not a NBU issue.


Regards,  Martin
Setting Logs in NetBackup: