為了實作及學習 iSCSI 的分享儲存空間(Shared Storage)設置,須要一台 NAS 設備,所以接下來將利用免費開源的 FreeNAS 來建置一台 NAS 虛擬主機。
前置準備
- 前往 FreeNAS 官網下載 ISO 檔 ,目前最新的版本為 11.1
- 依照 FreeNAS 的官方手冊所建議調整成虛擬環境下的設置:
- 1 Processor Core
- 8GB RAM
- 8GB HDD ─ 作業系統磁碟
- 30GB HDD x 4 ─ 資料儲存磁碟,並設為 RAID
- Network 配置使用 vmnet3
- 主機名稱及 IP:
- nas01: 192.168.100.14
新增及配置虛擬機
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FreeNAS 安裝
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FreeNAS 網路設定
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資料磁區建立及設定
根據官方的使用手冊(8. Storage)說明,Volumes 的建立有不同的類型,也各有最低的需求條件。如果想要有 RAIDZ1 以上的功能就必須提供至少 3 顆以上的硬碟:
Volume Manager only allows choosing a configuration if enough disks have been selected to create that configuration. These layouts are supported:
Stripe: requires at least one disk
Mirror: requires at least two disks
RAIDZ1: requires at least three disks
RAIDZ2: requires at least four disks
RAIDZ3: requires at least five disks
log device: requires at least one dedicated device, a fast, low-latency, power-protected SSD is recommended
cache device: requires at least one dedicated device, SSD is recommended
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