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Sizing and Best Practices for Deploying VMware View 4.5
on VMware vSphere 4.1 with Dell EqualLogic Storage
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persistent desktops PDisk=0.
Log Allocated for VM log files (if VM logging is
enabled)
0 (no logging)
OF% Overhead factor.
15%
Calculation: (1000*( 1GB + 15GB*(0.075)) + 2 * 2*(15GB)) * 1.15
(1000*( 1GB + 15GB*(0.05) + 0.5GB) + 2 * 2*(15GB)) * 1.15
2513GB 2484GB
(1)
For non-persistent desktops, this will include OS image changes, user profile data and application data.
The linked clone delta disk for non-persistent desktops will incur a higher change rate (%C) as
compared to persistent desktops. This is because persistent desktops redirect user profile and user
data to a separate disk.
Table 5: Sample Capacity Sizing Calculation for Linked Clone Desktop Pool
5.3 Sizing Storage Capacity
We used two EqualLogic array models in our test configuration: the PS6000XVS (hybrid 100GB SSD +
450GB SAS drives) and the PS6000XV (600GB SAS drives). The PS6000XVS was configured using the
default accelerated RAID 6. The PS6000XV was configured using RAID 10. Table 6 shows storage
capacities for these two array models using the configured RAID policies.
Model Disk Drive Size Storage Capacity
(c)
(GB)
PS6000XVS
(a)
8 x SSD + 8 x SAS 15K Drives
100GB SSD
450GB SAS 15K
2850 (accelerated RAID 6)
PS6000XV
(b)
16 x SAS 15K Drives
300GB 2100 (RAID 10)
450GB 3150 (RAID 10)
600GB 4200 (RAID 10)
(a) Accelerated RAID 6 is the only RAID policy supported by the PS6000XVS.
(b) The PS6000XV supports the following RAID policies: 5, 6, 10 and 50. For the purposes
of this test RAID 10 was selected to maximize I/O performance for random I/O.
(c) Useable capacity will be slightly less (~10%) than these values due to space required for
peer storage array management functionality.
Table 6: Storage capacity for PS6000XVS and PS6000XV
Note that the capacity calculations shown in Table 5 in the previous section are both within the
storage capacity limits for the PS6000XVS shown in Table 6.
Note: Raw storage capacity data for all EqualLogic SAN array models is available in
the Dell
EqualLogic Configuration Guide
, available here:
http://www.delltechcenter.com/page/EqualLogic+Configuration+Guide