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Questions tagged [ssd]

Solid-state drive refers to a data storage device that uses solid-state memory to store its persistent data.

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Requirements analysis for CPU-bound task writing to disk

I have a data-analysis application which is CPU-bound, and produces ~35 MB/s of data per thread of execution. I'm trying to work out how many threads I can run concurrently, and be able to write to disk without causing each to endlessly wait for…
Steve Lorimer
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Raid 1 with 3 disks of different sizes

I'm new to this site. I am currently configuring a server, which has these ssd disks: 1X1TB SSD NVme 2X512GB SSD NVMe Now I would like to create a raid 1 between these disks, in which I would always see the maximum size of 1 TB, but the data will be…
Andrea Angelozzi
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Strange file corruptions in ext4

Recently I came in contact with what appears to be disk corruption scenarios, and I would like to understand them better. I have a build server which I work with daily. During one full build of a recent LLVM release which stopped with a strange…
alecov
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Why do Enterprise SSD's have different sizes than consumer drives

When creating a quote for a few physical machines recently I was noticing that the "consumer" grade SSD's came in standard sizes like 512GB, 1TB etc while the enterprise grade SSD's came in sizes like 960GB, 1.92TB, 3.84TB etc. I've also noticed…
Kurt
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Intel S3500 need over provisioning in ESXi?

I have 8x Intel DC S3500 SSD's in Raid 10. I am setting up the datastore in ESXi, however I am not sure how much to over provision or if its needed. I know the s3500 are enterprise oriented but not the same as s3700 for example. Does the S3500 have…
Derek Brown
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SSD performance on Ubuntu + Nginx

I'm trying to improve the performance of server for nginx 100TB/month images distributions. But I have two problems: high CPU load and periodical splashes (I don't know why) Hardware is quite poor (this is the challenge, 100Tb on sub-standard…
demon101
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My VM instances on Google Cloud Platform do not work after increasing SSD size

Could you please help fix my emergent Google Cloud Platform problem? The configuration information as follow: The VM instances name is “cchatty” Machine type: n1-standard-1 (1 vCPU, 3.75 GB memory) CPU platform: Intel Broadwell Zone:…
TINA
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MySQL perf bad on SSD-based server. Small tables. MySQL config? RAID?

I have a couple of servers in an industrial setting (air-gapped network) that do some fairly light telemetry gathering. We generate about 10GB of telemetry history in ~30 days. All telemetry goes into a set of tables divided into two types:…
Kyle
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I want to delete exiting partition on a ssd and then create a partition and then a file system on the same

I want to delete existing partition on an ssd and then create a partition and then a file system on the same. How can I do it using a single command based on fdisk?
Rohan
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GCE Persistent SSD disks allocate more IOPS than specified

I've been testing GCE and created a VM with a persistent SSD disk to test disk performance. Persistent SSD disk that I configured was 37GB, which was supposed to give me 1110 IOPS but when I run diskspd.exe with the following parmeters, I get 1500…
user2629636
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Improving SQL speed - Can SSD and more RAM be effective?

I'm running a website on a VPS package on nomral Hard drive, and 3.25 GB RAM. I created a test page and realized that by simply including an SQL command such as: SELECT Name from table where Name IN ('$item_implode') ORDER BY FIELD (Name); My page…
rockyraw
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Why do I have very different read speeds at the same SSD?

In a Debian stretch, I did some quick tests for a 500GB Samsung SSD 840 read speed at all the different partitions and I cannot understand the results. My understanding so far was that the disk could not know anything about the partitioning scheme,…
Kostas Papadimakis
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Are SSD/HDD hybrid drives a good choice as drives in either BRTFS or md raid?

I'm currently planning to revamp a "computer". Using the term "computer" because I'm not sure what it's role exactly is... It runs Ubuntu (17.10 / artful), it's being used as multi-seat desktop for two users, it stores about 1.5 TB of data…
Patrick Echterbruch
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SSD Raid perfomance

Disks: 10xSSD Ultrastar SS200 960GB 12GB/s Raid 0, 6, 10. Controller: LSI Syncro 9380-8e Filesystem: ext4 without LVM System: Centos 7 2x E5620 @ 2.40GHz 32GB RAM fio-2.1.10: --iodepth=32 --ioengine=libaio --rw=randrw --bs=4k --size 10000M…
shallrise
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Moving Ubuntu VM to SSD

I decided to move my VM from A4_V2 to D11_V2 Promo because the D11_V2 offers SSD. However when I moved the VM, I don't see any difference in Azure Portal when I'm checking the disk: Type STANDARD Size (GiB) 100 Estimated performance IOPS LIMIT …
devondre
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