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19 Cards in this Set
- Front
- Back
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Storage Spaces |
creation of virtual disks from a pool of storage created by grouping standard Physical disks |
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Simple Striping |
Stripes data across physical disks, used in situation where HA is not required but max storage and throughput are |
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Mirror |
2 disks min for single failure, 5 disks for 2 failures. Duplicate copy of data is striped across multiple drives. |
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Parity |
3 disk min for 1 failure. data and parity is striped across disks. |
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dual parity |
can stripe additional parity, can handle 2 disk failures |
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Storage Tiers |
Group different disk types and speeds into Tiers that can be organized by priority |
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Write-back Cache |
leverages fast disk like SSDs. Cache writes on SSDs until the traffic slows down then rewrite on slower disk and clear cache |
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Basic Disk |
regular fixed hard disk, only does 4 primary partitions or 3 primary and one extended |
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Dynamic Disk |
specialized volumes inclduing spanned, striped, mirrored, RAID5. unlimited partitions (volumes) cannot be read by another OS not read by legacy OS on boot laptop computers do not support dynamic disk |
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in Disk Management Snap in: Healthy (at risk) state |
IO errors have been detected but data can still be accessed. |
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MBR |
Master Boot Record, uses partition table to describe locations on disk. up to 2 TB |
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GPT |
GUID Partition Table, EFI extensible firmware, store partition info inside partition for redundancy, more than 2 TB |
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cmd to convert to GTP |
diskpart list disk select disk n convert gpt |
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Simple Disk Type |
1 Disk. Single region or multiple concatenated regions of free space on single disk. No Fault Tolerance |
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Spanned Disk Type |
2-32 Disks. 2 or more regions of free space can be linked into single volume. Can be extended, cannot be mirrored. No Fault Tolerance |
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Striped Disk Type |
2-32 Disks Multiple regions of free space from 2 or more disks. Data is evenly striped. RAID 0 |
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RAID 0 |
Striped disks. 2-32 disks. |
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Mirrored Disk Type |
2 Disks |
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