From 0c5f87cf60d87c5ff28328e09d3a9377ca952692 Mon Sep 17 00:00:00 2001 From: yikeke Date: Mon, 13 Aug 2018 15:11:46 +0800 Subject: [PATCH] op-guide: fix some indicators Via: https://github.com/pingcap/docs-cn/pull/810 --- op-guide/recommendation.md | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/op-guide/recommendation.md b/op-guide/recommendation.md index e63034b31282f..eaa84ee3e4a00 100644 --- a/op-guide/recommendation.md +++ b/op-guide/recommendation.md @@ -22,6 +22,7 @@ As an open source distributed NewSQL database with high performance, TiDB can be > **Note:** > > - For Oracle Enterprise Linux, TiDB supports the Red Hat Compatible Kernel (RHCK) and does not support the Unbreakable Enterprise Kernel provided by Oracle Enterprise Linux. +> - A large number of TiDB tests have been run on the CentOS 7.3 system, and in our community there are a lot of best practices in which TiDB is deployed on the Linux operating system. Therefore, it is recommended to deploy TiDB on CentOS 7.3 or later. > - The support for the Linux operating systems above includes the deployment and operation in physical servers as well as in major virtualized environments like VMware, KVM and XEM. ## Server requirements @@ -33,7 +34,7 @@ You can deploy and run TiDB on the 64-bit generic hardware server platform in th | Component | CPU | Memory | Local Storage | Network | Instance Number (Minimum Requirement) | | :------: | :-----: | :-----: | :----------: | :------: | :----------------: | | TiDB | 8 core+ | 16 GB+ | SAS, 200 GB+ | Gigabit network card | 1 (can be deployed on the same machine with PD) | -| PD | 8 core+ | 16 GB+ | SAS, 200 GB+ | Gigabit network card | 1 (can be deployed on the same machine with TiDB) | +| PD | 4 core+ | 8 GB+ | SAS, 200 GB+ | Gigabit network card | 1 (can be deployed on the same machine with TiDB) | | TiKV | 8 core+ | 32 GB+ | SAS, 200 GB+ | Gigabit network card | 3 | | | | | | Total Server Number | 4 | @@ -46,9 +47,9 @@ You can deploy and run TiDB on the 64-bit generic hardware server platform in th | Component | CPU | Memory | Hard Disk Type | Network | Instance Number (Minimum Requirement) | | :-----: | :------: | :------: | :------: | :------: | :-----: | -| TiDB | 16 core+ | 48 GB+ | SAS | 10 Gigabit network card (2 preferred) | 2 | -| PD | 8 core+ | 16 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 | -| TiKV | 16 core+ | 48 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 | +| TiDB | 16 core+ | 32 GB+ | SAS | 10 Gigabit network card (2 preferred) | 2 | +| PD | 4 core+ | 8 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 | +| TiKV | 16 core+ | 32 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 | | Monitor | 8 core+ | 16 GB+ | SAS | Gigabit network card | 1 | | | | | | Total Server Number | 9 | @@ -56,7 +57,7 @@ You can deploy and run TiDB on the 64-bit generic hardware server platform in th > > - In the production environment, you can deploy and run TiDB and PD on the same server. If you have a higher requirement for performance and reliability, try to deploy them separately. > - It is strongly recommended to use higher configuration in the production environment. -> - It is recommended to keep the size of TiKV hard disk within 800G in case it takes too long to restore data when the hard disk is damaged. +> - It is recommended to keep the size of TiKV hard disk within 2 TB if you are using PCI-E SSD disks or within 1.5 TB if you are using regular SSD disks. ## Network requirements