HPE GreenLake Administration
- Community Home
- >
- Storage
- >
- Legacy
- >
- Disk
- >
- DS2100 dual port clarification
Disk
1833760
Members
2203
Online
110063
Solutions
Forums
Categories
Company
Local Language
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Forums
Discussions
Discussions
Discussions
Forums
Discussions
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
02-19-2003 07:55 AM
02-19-2003 07:55 AM
DS2100 dual port clarification
If I purchase a DS2100 which has 2 SCSI interfaces does it make sense to purchase a dual port HBA allowing me to do I/O through one and setup a PVlink through the other for higher avail. or is the other interface on the DS2100 only used to daisy chain to another DS2100...please advise
1 REPLY 1
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
02-19-2003 08:04 AM
02-19-2003 08:04 AM
Re: DS2100 dual port clarification
It's intended for daisy-chaining.
A dual-port HBA will buy you very little, IMHO.
Better would be 2 individual SCSI cards.
Why? If one fails, the other might be able to take over (via PVLinks). If you use a dual-port card, and the card dies, well, the whole card dies (both channels).
Besides, as reliability goes, hard drives are the worst, next is the SCSI card itself, then cabling and teminators, and finally the DS2100 itself. So, if a cable or terminator goes, your PVLinks are useless, because the bus is broken.
You would be much better served with 2 DS2100's, each on their own SCSI card. Mirror the drives in one to the drives in the other. This way, you're protected regardless of what fails.
Good luck,
Vince
A dual-port HBA will buy you very little, IMHO.
Better would be 2 individual SCSI cards.
Why? If one fails, the other might be able to take over (via PVLinks). If you use a dual-port card, and the card dies, well, the whole card dies (both channels).
Besides, as reliability goes, hard drives are the worst, next is the SCSI card itself, then cabling and teminators, and finally the DS2100 itself. So, if a cable or terminator goes, your PVLinks are useless, because the bus is broken.
You would be much better served with 2 DS2100's, each on their own SCSI card. Mirror the drives in one to the drives in the other. This way, you're protected regardless of what fails.
Good luck,
Vince
No matter where you go, there you are.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
Company
Events and news
Customer resources
© Copyright 2025 Hewlett Packard Enterprise Development LP