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DOC-1324 SSD backed persistent volumes typo
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  • modules/deploy/pages/deployment-option/self-hosted/manual

modules/deploy/pages/deployment-option/self-hosted/manual/sizing.adoc

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@@ -77,7 +77,7 @@ Redpanda is basically a distributed transaction log with well-understood access
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Your best storage solution for your workload depends on your performance and data retention requirements.
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If high throughput and low latency is most important, then use locally attached NVMe SSD disks. This is also a good option in the cloud. Just remember that in the cloud, local disks are ephemeral, so data is wiped when an instance is restarted. An alternative in the cloud is to use SSD-backed object storage to persist data between instance restarts. Most cloud providers have options for guaranteeing throughput and provisioned IOPS performance of network-attached storage, although network-attached storage almost always exhibits slightly higher tail latencies than direct-attached storage.
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If high throughput and low latency is most important, then use locally attached NVMe SSD disks. This is also a good option in the cloud. Just remember that in the cloud, local disks are ephemeral, so data is wiped when an instance is restarted. An alternative in the cloud is to use SSD-backed persistent volumes to retain data between instance restarts. Most cloud providers have options for guaranteeing throughput and provisioned IOPS performance of network-attached storage, although network-attached storage almost always exhibits slightly higher tail latencies than direct-attached storage.
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For example, AWS io2 volumes offer up to 64,000 IOPS and 1,000 MB/sec throughput with single-digit millisecond latency. This is an expensive option, so if you can trade performance for cost, then AWS gp3 volumes are a good alternative. GCP has comparable options with high-end Extreme persistent disks and the lesser SSD persistent disks. Likewise, Azure has Ultra, Premium, and Standard persistent disk options for choosing the right balance of performance versus cost.
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[,bash]
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----
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$ sudo apt -y update; sudo apt -y install fio
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$ cd /var/lib/redpanda/data
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$ sudo cat > fio-seq-write.job << EOF
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sudo apt -y update; sudo apt -y install fio
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cd /var/lib/redpanda/data
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sudo cat > fio-seq-write.job << EOF
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[global]
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name=fio-seq-write
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filename=fio-seq-write
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ioengine=libaio
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iodepth=16
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EOF
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$ sudo fio fio-seq-write.job
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sudo fio fio-seq-write.job
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Key performance metrics:

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