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guide:cloud:faq [2020/08/19 21:12]
lphukungoane [Technical FAQs] 		guide:cloud:faq [2021/12/09 16:42] (current)
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 1) ** Do you monitor my VM’s activity?** 1) ** Do you monitor my VM’s activity?**
  
-     Answer: ??+     Answer: We do not monitor user VM activity.
  
  
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-A possible way to avoid this issue in the future is described in this blog: https://www.blackmoreops.com/2014/09/22/linuxFAQ - SSH into VM Image-kernel-panic-issue-fix-hung_task_timeout_secs-blocked-120-seconds-problem/ 
- 
-  
  
 Basically, add these lines to "/etc/sysctl.conf": Basically, add these lines to "/etc/sysctl.conf":
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 4) ** I attached a large volume to my instance (10 TB), but when I try to format it takes a very long time. What can I do to make this step faster?** 4) ** I attached a large volume to my instance (10 TB), but when I try to format it takes a very long time. What can I do to make this step faster?**
  
-A: We recommend you format it as XFS and use the "-K" option:+Answer: We recommend you format it as XFS and use the "-K" option:
  
     mkfs.xfs -K /dev/vdb      mkfs.xfs -K /dev/vdb 
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 5) ** How do I give access to another user to my instance, without giving him access to my SSH private key?** 5) ** How do I give access to another user to my instance, without giving him access to my SSH private key?**
  
-A:You should never give another user access to your credentials or private key. Please run the following commands inside your instance in order to create a new user and allow him SSH key-based access to your instance. Replace "username" with your colleague's name.+Answer:You should never give another user access to your credentials or private key. Please run the following commands inside your instance in order to create a new user and allow him SSH key-based access to your instance. Replace "username" with your colleague's name.
  
     sudo adduser username     sudo adduser username
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 ---- ----
-====== Billing FAQs====== 
  
 +**For More Technical Assistance**
  
-1) **What payment methods are accepted?** +If you can’t find what you are looking for, please contact our support team. We are working hard to get back to you within 1-2 business days. Submit the ticket at [[http://helpdesk.chpc.ac.za|Helpdesk]] 
- +---- 
-    Answer: ?? +====== Billing FAQs======
- +
-2) **Who is your payment provider?** +
- +
-    Answer: ?? +
- +
-3) **I powered off my instance but I was still charged for usage!**+
  
-     Answer: Unlike Amazon EC2, CHPC charges for instances in any state, powered on, powered off, idle 
-     etc.This is because in the CHPC cloud your instances local disk is stored with the hypervisor for 
-     better performance. While the instance may be powered off, the data is still stored on the hypervisor 
-     and the space/ram/vcpu allocated to that instance must be reserved to prevent oversubscription so 
-     that the instance can be powered on again when the user requests it. 
  
-4) **How often am I billed?**+1) **I powered off my instance but I was still charged for usage!**
  
-    Answer: CHPC will send out invoices near the beginning of each month for the previous months usage. +     Answer: CHPC charges for resources allocated to the users whether they are actively using them or not. 
-    Payments are due upon you receiving the invoice.+             The resources you were approved for are reserved for you therefore  you obligated to pay 
 +             for them. 
 +     
  
-5) **What if I am late paying an invoice?**+2) **How often am I billed?**
  
-    Answer: We do not charge any late fees for late payments but if there are unpaid invoices we reserve +    Answer: CHPC will send out invoices on the 5th of every month for the previous calendar month usage. 
-    the right to terminate services for any accounts with overdue balances.+            
  
-6) **If I have an unpaid invoice, does that unpaid invoice get rolled in to the next months invoice?**+4) **If I have an unpaid invoice, does that unpaid invoice get rolled in to the next months invoice?**
  
-    Answer: No, we treat each invoice separately and do not carry forward any unpaid balances. Please +    Answer: Yes.
-    remember to pay all past invoices!+
  
-7)** Why does my bill fluctuate each month even though I am consuming the same amount of resources each month?**+5)** Why does my bill fluctuate each month even though I am consuming the same amount of resources each month?**
  
     Answer: We charge for resources used per hour and the number of hours per month vary throughout the     Answer: We charge for resources used per hour and the number of hours per month vary throughout the
-    year (28 days, 30 days, 31 days).+            year (28 days, 30 days, 31 days).
  
-8) **Why am I receiving an invoice for R0?**+6) **Why am I not receiving an invoice?**
  
-    Answer: We send invoices for all accounts even those without any usage. Think of it as a reminder that +    Answer: CHPC sends cloud resource usage invoices to all paying users on the 5th of every month.   
-    you still have an active account with us. If you want to terminate your account please email   +     
-    helpdesk@chpc.ac.za+If you would like to terminate your account please email  [[https://users.chpc.ac.za/helpdesk/ |helpdesk@chpc.ac.za]]
  
-9) **I have a billing related question that is not listed here, help?**+7) **I have a billing related question that is not listed here, help?**
  
-    Answer: Email helpdesk@chpc.ac.za with your question!+Answer: Email [[https://users.chpc.ac.za/helpdesk/ | helpdesk@chpc.ac.za]] with your question!
        
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