# Virtualization: VD vs Non-RAID mode for SSD
**URL:** https://discuss.aerospike.com/t/virtualization-vd-vs-non-raid-mode-for-ssd/2078
**Category:** Planning
**Created:** [November 4, 2015, 6:14pm UTC](https://discuss.aerospike.com/t/virtualization-vd-vs-non-raid-mode-for-ssd/2078 "2015-11-04T18:14:47Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Firm](https://discuss.aerospike.com/u/Firm)
#### Post date: [November 4, 2015, 6:14pm UTC](https://discuss.aerospike.com/t/virtualization-vd-vs-non-raid-mode-for-ssd/2078/1 "2015-11-04T18:14:47Z")
Hi,
I have two options on Dell H730 (LSI Megaraid) controller for my AE servers running on VMs:
1. Create VD (virtual drive) for each SSD attached (set read/write/drive cache policy, ncq etc via RAID BIOS or MegaCLI) and attach them directly to VM
2. Set each SSD as Non-RAID drive (control via hdparm/smartctl) (it also gives me +1GB more disk space than in VD-mode) and attach directly too
According to [Raid vs directly attached ssds](https://discuss.aerospike.com/t/raid-vs-directly-attached-ssds/1409) the use of VD-mode leads to performance degradation.
Any ideas what is the best?
P.S. There are VD-drive options (like no read cache, no write cache etc.) recommended for use with FastPath technology but it’s required to buy the license key.
Regards, Alexander
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### Author:  [@Firm](https://discuss.aerospike.com/u/Firm)
#### Post date: [November 5, 2015, 12:50pm UTC](https://discuss.aerospike.com/t/virtualization-vd-vs-non-raid-mode-for-ssd/2078/2 "2015-11-05T12:50:56Z")
Hi,
Since my H730 Mini is not capable of FastPath technology it seems that preferable way is to set SSD drives to Non-RAID mode.
Regards, Alexander