Re: Anyone using ScaleIO block storage?
We've been using ScaleIO alongside OpenStack for about 2 years now. From a stability point of view, no issues... we're still running on Mitaka so some of the integration isn't great but with the upgrade cycle coming up for us all of that should be solved. We only utilise (VM) instances on OpenStack though, not bare metal. _____________________________________________________________________ The information transmitted in this message and its attachments (if any) is intended only for the person or entity to which it is addressed. The message may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information, by persons or entities other than the intended recipient is prohibited. If you have received this in error, please contact the sender and delete this e-mail and associated material from any computer. The intended recipient of this e-mail may only use, reproduce, disclose or distribute the information contained in this e-mail and any attached files, with the permission of the sender. This message has been scanned for viruses. _____________________________________________________________________
Do you have a problems such as block request from compute to storage? So It makes VM is switched to read-only mode. On Thu, Dec 6, 2018 at 7:51 AM Burak Hoban <Burak.Hoban@iag.com.au> wrote:
We've been using ScaleIO alongside OpenStack for about 2 years now.
From a stability point of view, no issues... we're still running on Mitaka so some of the integration isn't great but with the upgrade cycle coming up for us all of that should be solved.
We only utilise (VM) instances on OpenStack though, not bare metal.
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-- Sa Pham Dang Cloud RnD Team - VCCloud Phone/Telegram: 0986.849.582 Skype: great_bn
The only time you should realistically see disks going into read-only mode from ScaleIO is if you’re having _major_ underlying issues, e.g. something like major networking issues, which may cause mass drops of MDMs or bad oscillating network failures. ScaleIO (VxFlex OS) can handle MDMs disconnecting fairly well, but the only time you’d really see issues if there’s something seriously wrong with the environment; this would be similar in a Ceph or any other software defined storage platform. We actually run ScaleIO environments (MDM, SDC and SDS) on top our Compute Nodes to offer instances block storage, but there’s also no issue in connecting external SDC’s to a ScaleIO cluster (e.g. if SDS is on storage only nodes) as it’s fully supported. _____________________________________________________________________ The information transmitted in this message and its attachments (if any) is intended only for the person or entity to which it is addressed. The message may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information, by persons or entities other than the intended recipient is prohibited. If you have received this in error, please contact the sender and delete this e-mail and associated material from any computer. The intended recipient of this e-mail may only use, reproduce, disclose or distribute the information contained in this e-mail and any attached files, with the permission of the sender. This message has been scanned for viruses. _____________________________________________________________________
So you are running SDS Service on Compute node. On Thu, Dec 6, 2018 at 2:08 PM Burak Hoban <Burak.Hoban@iag.com.au> wrote:
The only time you should realistically see disks going into read-only mode from ScaleIO is if you’re having _*major*_ underlying issues, e.g. something like major networking issues, which may cause mass drops of MDMs or bad oscillating network failures. ScaleIO (VxFlex OS) can handle MDMs disconnecting fairly well, but the only time you’d really see issues if there’s something seriously wrong with the environment; this would be similar in a Ceph or any other software defined storage platform.
We actually run ScaleIO environments (MDM, SDC and SDS) on top our Compute Nodes to offer instances block storage, but there’s also no issue in connecting external SDC’s to a ScaleIO cluster (e.g. if SDS is on storage only nodes) as it’s fully supported.
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The information transmitted in this message and its attachments (if any) is intended only for the person or entity to which it is addressed. The message may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information, by persons or entities other than the intended recipient is prohibited.
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-- Sa Pham Dang Cloud RnD Team - VCCloud Phone/Telegram: 0986.849.582 Skype: great_bn
In our environment, the Compute Nodes run the MDM, SDC and SDS components of ScaleIO (VxFlex OS). However external SDC’s and SDC’s connecting to multiple environments are fully supported. As long as the SDC-SDS network is available, and at least one MDM network is also available then there shouldn’t be any issues. Have you had issues before? _____________________________________________________________________ The information transmitted in this message and its attachments (if any) is intended only for the person or entity to which it is addressed. The message may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information, by persons or entities other than the intended recipient is prohibited. If you have received this in error, please contact the sender and delete this e-mail and associated material from any computer. The intended recipient of this e-mail may only use, reproduce, disclose or distribute the information contained in this e-mail and any attached files, with the permission of the sender. This message has been scanned for viruses. _____________________________________________________________________
participants (2)
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Burak Hoban
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Sa Pham