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2 Intern
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294 Posts
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7681
December 28th, 2011 05:00
Monitoring Volume Blocks Usage
Hi,
I was wondering if there is a way to monitor the volume's "In-Use" blocks (ie, within the "In-Use" volume space, how many blocks are actually in-use and how many blocks are no longer in-use). The reason I ask is because I have large file transfers that tend to increase the "In-Use" space even though the file system shows that it's 43% free (the volume's "In-Use" space is currently at 90% of the volume) and I just want to make sure that it won't max out the volume.
Thank you!
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dajonx
2 Intern
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294 Posts
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December 29th, 2011 07:00
Thank you for your response.
I understand that once a block has been allocated, it cannot be unallocated. I was just wondering if there's a tool to drill down further to see how the blocks are being used.
Actually after rereading your second paragraph, (just to be certain that I understand correctly) so long as the volume is not Thin Provisioned and the OS states that that volume has free space, the file transfers will not overwhelm the volume's blocks? In other words, it won't use more blocks as compared to Thin Provisioned volumes?
dajonx
2 Intern
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294 Posts
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December 29th, 2011 09:00
So in my current volume set-up, the volume is Thin Provisioned, is 4TB total (3.6TB In-Use, 400GB Unreserved) and the OS says that I have 50% free space. I've had to increase the volume space (was 3.5TB) because it was growing due to a 430GB file transfer even though the OS said that I had enough free space available. If the volume had been a classic volume, that problem wouldn't have happened, right?
I understand your first two paragraphs. I'm just really unsure about the above predicament.
dajonx
2 Intern
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294 Posts
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December 29th, 2011 09:00
Thank you so much for taking time to explain this to me.
If I set the warning threshold to 100%, that's essentially the same as a classic volume once the In-Use space is full. For the Thin Provisioning Modes in the EQL GUI, "Leave Online When Maximum In-Use Space Is Exceeded" means if the OS volume is 100% full, correct?