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E500 Support for disks on both ports in one array/lun

Trevor Roddam_1
Valued Contributor

E500 Support for disks on both ports in one array/lun

Hello.

I've been looking for but can not find an answer.
Assuming a suitable server.
An E500 SA card, with cache upgrade
2 x MSA50 enclosures one to each E500 port.
4 HDDs in each enclosure.

Can I configure a single LUN of the 8 HDDs.
Any RAID, pref 1+0.

Thanks in Advance.
Trevor.
Baldric, I have a plan so cunning you could pin a tail on it and call it a weasle.
6 REPLIES
Patrick Terlisten
Honored Contributor

Re: E500 Support for disks on both ports in one array/lun

Hello,

an array can't be spanned over two controllers. But you can build two four drive RAID 1+0 and stripe them under your OS.

Best regards,
Patrick
Best regards,
Patrick
Trevor Roddam_1
Valued Contributor

Re: E500 Support for disks on both ports in one array/lun

By two controllers do you mean the two ports on an E500?
An E500 has 2 ports, one for each MSA50.
Baldric, I have a plan so cunning you could pin a tail on it and call it a weasle.
Patrick Terlisten
Honored Contributor

Re: E500 Support for disks on both ports in one array/lun

Hello Trevor,

surely you can span an array over both controller ports, but not over two controllers. So if you attach two MSAs to one controller, you can span an array over both connected MSAs.

Best regards,
Patrick
Best regards,
Patrick
Trevor Roddam_1
Valued Contributor

Re: E500 Support for disks on both ports in one array/lun

Thanks.

However, you could not do this on the Compaq SA6404.

The HP 4m Would do this.
Hence the question.
How confident are you of a "Yes"?
Baldric, I have a plan so cunning you could pin a tail on it and call it a weasle.
Trevor Roddam_1
Valued Contributor

Re: E500 Support for disks on both ports in one array/lun

Due to the support for Dual Domain support I'm assuming it is supported on the E500 as in the P800.
It is my understanding that the P400 can not do this and it also does not support Dual Domain.
I'll leave this open for a day or two if someone from who has done this can respond.

I don't have the HW lying around to test.

Thanks.
Trevor.
Baldric, I have a plan so cunning you could pin a tail on it and call it a weasle.
Patrick Terlisten
Honored Contributor

Re: E500 Support for disks on both ports in one array/lun

Hello,

P400 doesn't support dual domain. According to the E500 quickspecs it does support dual domain.

Best regards,
Patrick
Best regards,
Patrick