Month 1-3 Flashcards
(29 cards)
What are the steps in the Windows BOOT process?
- Power-On
- POST
- UEFI/BIOS
- Boot device selection
- Boot Manager
- Windows Boot Loader
- Kernel
- Drivers & Services Initialization
- Login
What are the steps in the Linux BOOT process?
- Power On
- POST
- BIOS/UEFI
- MBR (master boot record)
- Grub
- Kernel
- Init/Systemd
- Login
What is UEFI?
UEFI: Unified extensible firmware interface. Better version of BIOS with more features
What is Legacy BOOT?
Traditional BIOS with MBR partitioning, 2TB limit, text interface
What does POST stand for?
Power-On Self-Test
How do you flash a motherboard?
bash <(curl -sL kingfisher/v1/DCO-LIVE/dco/speedflash) -m [Manufacturer] [Host type] -a [Asset ID] -s [HWID] -r [Console IP]
What are the firmwares on a K2 card?
Cinder (base), Carbon (full OS from keg)
How do you reset firmwares on a K2 card?
Carbon menu’s Card Reset option
What does DWDM stand for?
Dense Wavelength Division Multiplexing
What VFL?
Visual Fault Locator. Red light through fiber for breaks etc
What is CoAP?
Constrained Application Protocol: Used to communicate with nitro cards.
What is CBP?
Carbon Based Provisioning: EC2 automation communicate with nitro to manage hardware
What is CPLD?
Complex Programmable Logic Device
__________________________________________________________
Advanced: Security mode used in production
Manufacturing: Standard operational mode for initial setup and testing
Engineering: Development and testing mode with flexible configuration
What is Cinder?
Cinder: Downgraded version of Carbon. Always on K2 cards no matter state.
What is the host lifecycle?
- Ingest
- Provisioning
- Vetting
- Create Instance
- Break-Fix
- Monitor
- Decommission
What does DMI stand for and what does it do?
Desktop Management Interface: Provides HW info accessed via ‘dmidecode’.
What types of switch models are there?
Accton: LB8, LB9, LB6M
Celestica: CS8000, CS8001
DNI: AG9064
What does IPXE stand for?
Initial pre-boot execution environment
AWS network topology
- Host
- Euclid TOR
- Euclid Brick
- Euclid Spine
- BFC brick
- BFC Spine
- DC Border
- Transit Center
- Border Backbone
- Internet
10 Tavern Apps?
- Larger (cloudforge logs)
- Saison (SEL logs)
- Mild (EC2 lease)
- IPA (Part info)
- Happoshu (Network device finder)
- Gose (Manuals)
- Dunkel (Console IP)
- Altbier (Host state)
- Quad (Firmware)
- Lambric (Part history)
What makes up DCODIAG?
- ipmitool
- dmidecode
Shows HW info - ifconfig
- ethtool eth0
- cpuinfo
- dmesg
System info and error messages. - cat /var/log/
What is IPMI?
Intelligent Platform Management Interface
Used to communicate with the BMC allowing remote communication to servers regardless if server is ON
SMART
Self monitoring, Analysis, and reporting technology
RAID
Redundant Array of Independent Disks
