March 2018
Intermediate to advanced
504 pages
13h 51m
English
Content preview from VMware Cross-Cloud Architecture
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Magnetic hard disk drives
The HDDs (SAS/SATA/NL-SAS) in vSAN hybrid configurations are used for data storage capacity. They are also a critical and determining factor in the available stripe width for VM storage policies. To get a defined stripe width, we must ensure that a particular stripe width should be available across all servers in the cluster to achieve the objective. If the VM has a high failure to tolerate setting then we need additional HDDs, as each component must be replicated to meet the requirement.
VMware supports the following three types of magnetic disk:
- Serial Attached SCSI (SAS)
- Near Line Serial Attached SCSI (NL-SAS)
- Serial Advanced Technology Attachment (SATA)
NL-SAS are enterprise SATA drives with a SWAS interface. ...