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тАО08-10-2005 03:37 AM
тАО08-10-2005 03:37 AM
Attaching an external LTO drive to a DL380 G4
Can anyone confirm that by default the DL380 G4's are shipped with the 6i controller in Embedded Simplex CSI cabling configuration, i.e. allowing an external LTO drive to be hung off the external VHDCI port as well as having six internal disks. We've done this on my recommendation and the backups are ridiculously slow.
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тАО08-10-2005 05:26 AM
тАО08-10-2005 05:26 AM
Re: Attaching an external LTO drive to a DL380 G4
By default, the DL380G4 ships in "simplex" mode (or at least the ones that I have been getting are in simplex), which is ironic because I ordered 2 G4/MSA500G2 Cluster-in-a-box and they came from the factory in "duplex" mode effectively disabling the external connection (which is the first Array Connection used by the 2 nodes.)
If your server is in Duplex mode, you would not even be able to see the LTO drive.
In simplex mode, you should be able to run 6 internal disks and the LTO, but is probably not the best solution. A dedicated SCSI adaptor would be the best choice, but not necessary.
Steven
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
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тАО08-13-2005 09:10 PM
тАО08-13-2005 09:10 PM
Re: Attaching an external LTO drive to a DL380 G4
It is not recommended to put hard disks and tape drive/library on same SCSI channel becuase IO bandwiths for HDDs and tape drives are quite different. Suggest a dedicated SCSI card for Tape Drive
Regards
Mahesh
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тАО08-14-2005 09:29 PM
тАО08-14-2005 09:29 PM
Re: Attaching an external LTO drive to a DL380 G4
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тАО09-07-2005 01:53 AM
тАО09-07-2005 01:53 AM
Re: Attaching an external LTO drive to a DL380 G4
I've made the same consideration regarding the possibility of connecting the tape drive to the external port
What I was thinking is that given a simplex configuration the external port would have used th second "available" channel. Instead I see the LTO drive conencted in the same bus as the disk drives .
There isn't a way to use the second channel to attach the external LTO ?
thanks
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тАО09-07-2005 02:34 AM
тАО09-07-2005 02:34 AM
Re: Attaching an external LTO drive to a DL380 G4
It would probably be best to start a new post since your issue is a bit different from Peter's. It will also allow you to close out the thread when you have fixed the issue, assign points to replies and give others with the same problem a more consice path to follow while they search for their answers/help.
I would definitely include a screenshot of "where" you're seeing that both the hard drives and the tape drive seem to be on the same bus. Also, check your actual device properties. target:bus:lun (or is it bus:target:lun?) values.... and post them.
Steven
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
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тАО09-07-2005 02:45 AM
тАО09-07-2005 02:45 AM
Re: Attaching an external LTO drive to a DL380 G4
As mentioned my backups have now been sorted with a dedicated SCSI card in the server but I did experience something similar to Stefano's problem. Prior to installing the SCSI card I needed to use the Array configuration manager for an un-related problem and afterwards the LTO drive was showing as being Offline. This made me think that the LTO drive was on the same bus as the disks.
Peter
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тАО09-07-2005 03:54 AM
тАО09-07-2005 03:54 AM
Re: Attaching an external LTO drive to a DL380 G4
started a new thread as suggested.
By the way :
- I see the tape is on the same channel as the disks when the server boots and the SA6i display its configuration. At that moment I cannot get a screenshot