Hi all, I'm looking at sizing up some new MDS nodes, but I'm not sure if my thought process is correct or not:
CPU: Limited to a maximum 2 cores. The higher the GHz, the more IOPS available. So something like a single E5-2637v3 should fulfil this. Memory: The more the better, as the metadata can be cached in RAM (how much RAM required is dependent on number of files?). HDD: This is where I'm struggling, does their speed/IOPs have an significant impact on the performance of the MDS (I'm guessing this is dependent on if the metadata fits within RAM)? If so, does the NVMe SSDs look like the right avenue, or will standard SATA SSDs suffice? Thanks in advance for your help! Simon Hallam Please visit our new website at www.pml.ac.uk and follow us on Twitter @PlymouthMarine Winner of the Environment & Conservation category, the Charity Awards 2014. Plymouth Marine Laboratory (PML) is a company limited by guarantee registered in England & Wales, company number 4178503. Registered Charity No. 1091222. Registered Office: Prospect Place, The Hoe, Plymouth PL1 3DH, UK. This message is private and confidential. If you have received this message in error, please notify the sender and remove it from your system. You are reminded that e-mail communications are not secure and may contain viruses; PML accepts no liability for any loss or damage which may be caused by viruses.
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