You are currently browsing the VDI Ready weblog archives for the day 29. December 2009.
| M | T | W | T | F | S | S |
|---|---|---|---|---|---|---|
| « Oct | Jan » | |||||
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | |||
- Citirx (47)
- event (1)
- General Virtualization (18)
- Green Computing (4)
- Microsoft (5)
- Pandemic (1)
- Products (5)
- Uncategorized (26)
- VDI (71)
- VMware (19)
- XenApp (4)
- Xendesktop (10)
- XENserver (9)
- 26. March 2012: New Brian Madden book:
- 1. March 2012: eG Innovations and RES Software Join Forces to Transform Enterprise Desktop Environments
- 1. March 2012: VDI or IDV: Which choice makes the most sense?
- 13. January 2012: Top 10 Free Citrix support Tools
- 11. January 2012: New VDI interface for Ipad from Citrix
- 10. November 2011: Citrix Acquires ShareFile, The “Dropbox For Enterprises”
- 4. November 2011: VDI Optimizer
- 5. October 2011: Some Old School Citrix tools:
- 7. April 2011: Remember that VDI project that performed well in the lab, but once out in the enterprise, its performance left something to be desired?
- 11. February 2011: The future of Virtual desktops
- March 2012
- January 2012
- November 2011
- October 2011
- April 2011
- February 2011
- January 2011
- October 2010
- September 2010
- August 2010
- July 2010
- May 2010
- April 2010
- January 2010
- December 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
Archive for 29. December 2009
NetScaler MPX vs. VPX – differences
29. December 2009 by Tony.
The NetScaler VPX virtual appliance has some decisive differences from its MPX hardware counterparts. While the performance differences are well documented, some of the finer networking related points are a bit obscure and not readily discoverable. While none of them are likely to be show stoppers, it’s important to be familiar with the limitations.
Here’s a short table I’ve assembled describing the impact of the hypervisor on the NetScaler virtual appliance as compared to the network stack of the MPX:
| MPX | VPX |
| Native 802.1q VLAN Tagging | Tagging is defined on the hypervisor. XenServer is limited to 7 tagged networks and 16 on VMware. |
| Native 802.3ad Link Aggregation | 802.3ad is not supported by XenServer. Source Level Balancing (SLB) NIC bonding is the closest parallel and offers NIC redundancy with great performance. But not all switches work well with SLB so be sure to test under load, plug both links into a single switch, or skip SLB entirely in favor of native NetScaler device failover. |
| Device Fail-over | Failover is supported between VPX devices through NetScaler’s native redundancy mechanism. So there’s no need for XenMotion or VMotion support with the VPX. |
| Dedicated SSL Chipset | No SSL chipsets are available to the VPX, but none the less, it is capable of 300 3DES and 1000 RC4 sessions. At double the VPN capacity, VPX makes a great upgrade path from Secure Gateway by providing a full SSL-VPN, Smart Access, and improved security. |
Licensing Changes in VPX 9.1 Build 100.3:
For VPX appliances only, the 9.1_100.3 license software will check the MAC address of the FIRST INTERFACE listed. In previous builds, the license software checked the MAC address of the NEWEST INTERFACE. For VPX customers who upgrade to 9.1_100.3, this change will invalidate licenses on VMs which had more than one interface. They will need to revisit MyCitrix.com licensing portal to re-host their license. CTX122426 – NetScaler VPX Licensing Guide has been updated with the rehosting instructions.
VPX owners are allowed to relicense their VPX system up to 3 times.
References: XenServer Administrator’s Guide: Chapter 4, Networking
thanx to Richard Davis for this blog !
Posted in Citirx | 1 Comment »
Will Oracle buy Citrix?
29. December 2009 by Tony.
[According to the Briefing.com financial news site, software giant Oracle - not even finished with its $7.4bn acquisition of Sun Microsystems - is sniffing around middleware and virtualization maker Citrix Systems and may be interested in acquiring the company.
That Oracle would be interested in buying Citrix is totally plausible. Oracle has its own implementation of the open source Xen hypervisor. When it became clear that Red Hat was going to shift to the KVM hypervisor, Oracle looked around for another set of Xen tools and snapped up Virtual Iron, which had its own variation on the Xen theme. But in August 2007 Citrix bought XenSource.] Full Story Here
Posted in Uncategorized | No Comments »