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NW 5.1 NSS

Posted on 2000-04-27
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Last Modified: 2012-06-27
As far as I know Novell Storage Services don't have file compression and disk suballocations features yet. I would like to know if I decide to implement NSS are my files going to take more space than if they were on traditional NetWare volume with file compression and suballocation on? If this is the case what is the ratio - if for example I want to copy 10 GB (compressed) data from NetWare 4.11 into NSS volume on 5.1 how much space it would take?
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Question by:j23
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Zombite earned 100 total points
ID: 2757410
If you run filer and look at volume information, statistics, it will tell you how much your compressed data is actually going to take up when uncompressed.

If you have a directory you want to check then use ndir
eg
ndir g:\mydirectory\*.* /s /comp

At the end of the list it will tell you the compressed and uncompressed size of directory files in total.

In regard to the sub block allocation - that would really depend a lot on the what files and sizes.
with 64k blocks and no sub block, if you had 60 files of 5K size then you are going to take up 60 x 64K
If the file sizes are larger, then you are not going to have much loss.
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by:j23
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Any idea when this disadvantage of NSS will be fixed?
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by:Zombite
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From what I have seen, NSS doesnt look like it will ever have compression due to its nature - but I could be wrong.

This Document lays down the current Pros and Cons of NSS volumes and its features.

1. Individual file size on an NSS volume could be as large as 8192GB compared to 2GB on a traditional NetWare volume.
2. NSS volumes are capable of holding trillions of files in a single directory.
3. NSS volumes provide rapid access to data regardless of file size and faster volume mounts.
4. NSS volumes have low server memory requirements. 32MB of RAM can mount an NSS volume of any size.
5. NSS can treat free space on multiple storage devices as a single volume
6. NSS provides enhanced CD-ROM support. CD's are recognized and mounted automatically as read-only volumes
7. NSS allows up to 4 NetWare partitions per disk and unlimited volumes per partition

DISADVANTAGES

1. NSS cannot be used for the SYS volume
2. NSS does not support TTS, Disk Striping, Disk Mirroring, Real Time Data Migration, File Compression and Hierarchial Storage Management
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