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Storage Ruminations |
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Storage Ruminations
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Reflections of a Storage Inquisitor
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NS20 NFS Performance, Part Deux
As a follow-on to the previous post, I wanted to see what happened with various block sizes as compared to the default 32768 v3xfersize parameter on Celerra NFSv3.
Test 1: 35840 byte block sizes (35KB as per customer)
Test 2: 8192 byte block sizes (8KB)
Test 3: 32768 byte block sizes (32KB)
Test 4: 65536 byte block sizes (64KB)
Test [...]
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NS20 NFS Performance
Background:
I’ve been working with a customer whose data set exceeds 100TB, and they were concerned in particular with the NFS write performance for their data ingests, which typically included over 100GB of data. The typical data ingest included files that averaged 35k files with roughly 5000 files per directory. The customer noticed differing performance depending [...]
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CX vs DMX Failure Scenarios
Whenever customers are considering a CX vs DMX, we try our best to provide the customer with an holistic view of the pros and cons of each of the arrays and ultimately to match the price/performance/availability configuration with the customer’s profile. One of the lesser discussed areas of differentiation is what happens in failure scenarios. [...]
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Interesting Findings, Part Deux
In yesterday’s post , I made a note that one of my wishlist items was to dig deeper and check individual CPU utilization on both the FA directors and DA directors. Well it looks like Christmas came a little early this year.
Let’s first take a look at the FA CPU utilization, on a per CPU [...]
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Interesting Findings From DMX Benchmarking
Greetings. I started a new gig some two months back and have since enjoyed the company of geeks whose mandatory apparel includes laptop straps for mobile data center computing (not depicted) and the beauty that you see depicted to the right. The environment has thusfar fostered much creativity and freedom of technical thought, to say [...]
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Storage Ruminations